{"id":"CVE-2026-115417","aliases":["EUVD-2026-108508","GHSA-g3x5-86mr-65p5","openSUSE-SU-2026:12357-1"],"status":"published","title":"Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt","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.","severity":{"version":"4.0","score":8.2,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0035,"percentile":0.29084,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-789"],"published":"2026-10-22T20:34:50Z","modified":"2026-10-31T18:11:55Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"aws-c-mqtt","fixed_in":["0.16.2-2.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"aws-c-mqtt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.2-2.1"}]}]}],"products":[{"vendor":"aws","product":"aws-c-mqtt"}],"references":[{"url":"https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2","tags":["release-notes","patch","fix"]},{"url":"https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5","tags":["third-party-advisory","advisory"]},{"url":"https://aws.amazon.com/security/security-bulletins/2026-147-aws/","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115417.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115417","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-115417","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-115417","title":"Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt","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.","status":"published","published":"2026-10-22T20:34:50.961Z","modified":"2026-10-29T01:52:06.755Z","cvss":[{"version":"4.0","score":8.2,"vector":"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","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-789"],"updated_at":"2026-11-02T14:20:01.618694Z"}],"euvd":[{"id":"EUVD-2026-108508","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.","status":"published","published":"2026-10-22T20:34:50Z","modified":"2026-10-29T01:52:06Z","cvss":[{"version":"4.0","score":8.2,"vector":"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","level":"high"}],"updated_at":"2026-11-02T16:59:18.059516Z"}],"nvd":[{"id":"CVE-2026-115417","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.","status":"published","published":"2026-10-22T21:17:17.633Z","modified":"2026-10-29T02:16:50.483Z","cvss":[{"version":"4.0","score":8.2,"vector":"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","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-789"],"updated_at":"2026-11-02T14:13:02.724605Z"}],"osv":[{"id":"CVE-2026-115417","title":"Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt","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.","status":"published","published":"2026-10-22T20:34:50.961Z","modified":"2026-10-31T18:11:55.518255805Z","cvss":[{"version":"4.0","score":8.2,"vector":"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","level":"high"}],"cwes":["CWE-789"],"updated_at":"2026-11-02T15:44:56.675758Z"},{"id":"openSUSE-SU-2026:12357-1","title":"aws-c-mqtt-bin-0.16.2-2.1 on GA media","description":"These are all security issues fixed in the aws-c-mqtt-bin-0.16.2-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-30T00:00:00Z","modified":"2026-10-31T18:00:05.935635798Z","updated_at":"2026-11-02T16:58:41.463445Z"}]}}