{"id":"CVE-2026-115417","published":"2026-10-22T21:17:17.633","lastModified":"2026-10-23T17:17:17.303","description":"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 the client application.\n\n\n\nTo remediate this issue, users should upgrade to aws-c-mqtt 0.16.2 or later, or to an AWS Common Runtime or AWS IoT Device SDK release that bundles it.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-789"],"vendors":[],"products":[],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-147-aws/","tags":[]},{"url":"https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2","tags":[]},{"url":"https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5","tags":[]}],"exploitRefs":[{"url":"https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2","tags":[]},{"url":"https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5","tags":[]}],"hasPoc":true,"ai":null}