Vulnerability feed

CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 01:05 UTC

Critical in the last 24 hours

1603 in 30 days

Newly known exploited

In the last 24 hours, CISA KEV and vendor reports

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Every hour, see the list

New in the last 24 hours

136-77% vs 7-day avg of 597

2 critical, 34 high, 59 medium, 21 low

Expand	Severity	Score	Advisory	Title	Source	Published
	High	8.8	CVE-2026-108446	Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 15 21:17 UTC
CVE-2026-108446Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 15, 2026 21:17 UTC Read the advisory
	High	8.8	CVE-2026-97780	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97780Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	Medium	6.5	CVE-2026-97779	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97779Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. From the advisory Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. Impact if exploited ConfidentialityHigh IntegrityNone AvailabilityNone How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97778	Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97778Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97777	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97777Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97776	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97776Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97775	Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97775Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97773	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97773Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97772	Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97772Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97771	Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97771Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97770	Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97770Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97769	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97769Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97768	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97768Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97767	Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97767Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97766	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97766Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97765	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97765Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97763	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97763Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97762	Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97762Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	Medium	6.5	CVE-2026-97760	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97760Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. From the advisory Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. Impact if exploited ConfidentialityHigh IntegrityNone AvailabilityNone How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97758	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97758Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97757	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97757Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97756	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97756Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97755	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server, Microsoft SharePoint Server Subscription Edition	NVD	Oct 13 19:22 UTC
CVE-2026-97755Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server Microsoft SharePoint Server Subscription Edition NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97754	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97754Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory
	High	8.8	CVE-2026-97753	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. MicrosoftMicrosoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024, Microsoft 365 Apps, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365, Microsoft Office Online Server	NVD	Oct 13 19:22 UTC
CVE-2026-97753Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. From the advisory Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affects Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024 Microsoft 365 Apps Microsoft Office 2021 Microsoft Office 2024 Microsoft Office 365 for Mac Microsoft Office LTSC for Mac 2021 Microsoft Office LTSC for Mac 2024 Microsoft 365 Microsoft Office Online Server NIST National Vulnerability DatabasePublished Oct 13, 2026 19:22 UTC Read the advisory

Example	Finds
	Every word appears somewhere: title, summaries, IDs, vendor, or product
	An exact phrase
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	CVSS score, with >, >=, <, or <=
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	Known exploited. is:kev works too, and kev:no leaves them out
	One source, by name
	Confidentiality impact: high, low, none, or any (low or high)
	Integrity and availability work the same way
	An advisory or CVE ID, or part of one
	A minus sign leaves out whatever the term matches

Vulnerability feed

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