Vulnerability feed

CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 02:05 UTC

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2 critical, 38 high, 59 medium, 25 low

Expand	Severity	Score	Advisory	Title	Source	Published
	High	7.5	CVE-2026-76505	A vulnerability in the IPv4 packet processing functionality of Cisco IOS XR Software that affects Cisco ASR 9000 and 9900 Series Aggregation Services Routers as well as Cisco... CiscoCisco IOS XR Software	NVD	Oct 21 17:19 UTC
CVE-2026-76505A vulnerability in the IPv4 packet processing functionality of Cisco IOS XR Software that affects Cisco ASR 9000 and 9900 Series Aggregation Services Routers as well as Cisco... From the advisory A vulnerability in the IPv4 packet processing functionality of Cisco IOS XR Software that affects Cisco ASR 9000 and 9900 Series Aggregation Services Routers as well as Cisco ASR 9902 and 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause network processor (NP) errors, resulting in a line card reset or shutdown and a denial of service (DoS) condition.  This vulnerability is due to the incorrect handling of crafted IPv4 packets that are received on an affected line card interface and processed as for-us traffic. The issue can result in an NP reset, causing traffic loss on the affected line card while it recovers. Under repeated reset conditions, the network processor may enter a persistent shutdown state, in which case an explicit line card reload may be required to restore traffic. The vulnerability is within the IPv4 packet-processing path. Transit IPv4 traffic does not trigger this issue and IPv6 traffic cannot trigger it. Impact if exploited ConfidentialityNone IntegrityNone AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Privileges required None User interaction None Scope Unchanged CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affects Cisco Cisco IOS XR Software NIST National Vulnerability DatabasePublished Oct 21, 2026 17:19 UTC Read the advisory
	None	n/a	cisco-sa-emudhra-info-ScS22A1r	Cisco Informational for Emergency Distrust of eMudhra Root and Intermediate Certificate Authorities CiscoCisco IOS XR Software, Cisco Secure Firepower Management Center (FMC) Software, Cisco ThousandEyes Enterprise Agent, Cisco Duo Access Gateway, Cisco Duo Agentic Authorization Connector, Cisco Duo Network Gateway, Cisco Meraki Dashboard, Cisco Meraki MV Smart Camera Firmware, Cisco Ultra Cloud Core - Subscriber Microservices Infrastructure	Cisco PSIRT	Oct 24 20:55 UTC
cisco-sa-emudhra-info-ScS22A1rCisco Informational for Emergency Distrust of eMudhra Root and Intermediate Certificate Authorities Executive summary Cisco says eight intermediate certificates from the certificate authority eMudhra have weak private keys that can be brute-forced within seconds, so attackers could issue fraudulent TLS and code signing certificates. Cisco is still investigating its product line, and the advisory names a limited set of Cisco products as impacted, with some fixes or cloud remediation under way. Cisco recommends reviewing the vulnerable products table and applying the listed upgrades or remediation steps. Technical summary The flaw is a cryptographic key weakness: the private keys for eight eMudhra intermediate certificates were broken by an error in their April 2025 Key Generation Ceremony, so anyone can brute-force them, and the eight certificates were cross-signed by Sectigo's AAA Certificate Services root in May 2025. The advisory says the issue lets holders of these keys issue fraudulent TLS certificates for any domain and sign malicious code, and it states that a public announcement exists but that Cisco PSIRT is not aware of malicious use. The advisory lists target release dates and upgrade versions for some products, including Duo Access Gateway 3.2.0, Duo Network Gateway 3.4.1, Duo Agentic Authorization Connector 1.0.1, IOS XR Software 26.4.1 (target Nov 30, 2026), and Ultra Cloud Core - Subscriber Microservices Infrastructure 2026.04.1 (Nov 2026), but it does not give fixed versions for every product. The header states no workarounds are available, and the advisory says any workarounds will be documented in the Vulnerable Products section. Secure Firepower Management Center has a Cisco TechZone article for configuring a TLS policy to block known eMudhra certificate issuers. Detection guidance beyond that is not stated. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Summarized from sec.cloudapps.cisco.com/security/center…mudhra-info-ScS22A1r Score No CVSS score published. Affects Cisco Cisco IOS XR Software Cisco Secure Firepower Management Center (FMC) Software Cisco ThousandEyes Enterprise Agent Cisco Duo Access Gateway Cisco Duo Agentic Authorization Connector Cisco Duo Network Gateway Cisco Meraki Dashboard Cisco Meraki MV Smart Camera Firmware Cisco Ultra Cloud Core - Subscriber Microservices Infrastructure Cisco Product Security Incident Response TeamPublished Oct 24, 2026 20:55 UTC Read the advisory

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