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CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 04:05 UTC

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Expand	Severity	Score	Advisory	Title	Source	Flags	Published
	High	8.2	CVE-2026-115417	Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in AWS aws-c-mqtt before 0.16.2 might allow a remote actor to cause a denial of service of... AWSaws-c-mqtt, AWS IoT Device SDK for C++ v2	NVD		Oct 22 21:17 UTC
CVE-2026-115417Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in AWS aws-c-mqtt before 0.16.2 might allow a remote actor to cause a denial of service of... Executive summary A memory allocation flaw in the MQTT 3.1.1 compatibility adapter of aws-c-mqtt, a messaging library distributed by AWS and bundled in the AWS IoT Device SDK for C++ v2, can let a remote party crash a client process. The advisory describes this as a denial of service issue and does not state a numeric severity score. AWS recommends upgrading to aws-c-mqtt v0.16.2 or later. Technical summary The flaw is a memory allocation with excessive size value (CWE-789) in the MQTT 3.1.1 compatibility adapter, which could let a remote actor cause a denial of service of the client process under certain conditions. Affected versions are stated as greater than or equal to 0.9.1 and less than 0.16.2. The fixed version is v0.16.2. The advisory says upgrading is the complete remediation. Workarounds given are to connect only to trusted MQTT brokers such as AWS IoT Core, to use TLS to prevent on-path tampering of broker responses, and to avoid the MQTT 3.1.1 compatibility adapter where feasible. The specific preconditions and exploitation details are not stated, and no detection guidance is provided. Whether the issue is exploited in the wild is not stated, and no CVSS score is given. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Summarized from aws.amazon.com/security/security-bulletins/2026-147-aws Impact if exploited ConfidentialityNone IntegrityNone AvailabilityHigh How it is exploited Attack vector Network Attack complexity Low Attack requirements Present Privileges required None User interaction None CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affects AWS aws-c-mqtt AWS IoT Device SDK for C++ v2 NIST National Vulnerability DatabasePublished Oct 22, 2026 21:17 UTC Read the advisory

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