{"id":"CVE-2026-115417","aliases":[],"cve":{"records":[{"id":"CVE-2026-115417","source":"AMZN","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-22T13:18:17.258Z","published":"2026-10-22T20:34:50.961Z","modified":"2026-10-29T01:52:06.755Z"}],"publishers":[{"name":"AMZN","role":"CNA","organizationId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","modified":"2026-10-22T20:34:50.961Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T01:52:06.755Z"}],"references":[{"url":"https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2","tags":["release-notes","patch"],"source":"AMZN"},{"url":"https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5","tags":["third-party-advisory"],"source":"AMZN"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-147-aws/","tags":["vendor-advisory"],"source":"AMZN"}],"weaknesses":[{"id":"CWE-789","description":"CWE-789 Memory allocation with excessive size value","source":"AMZN"}],"applicability":[{"source":"AMZN","statements":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:aws:aws-c-mqtt:*:*:*:*:*:*:*:*","versionStartIncluding":"0.9.1","versionEndExcluding":"0.16.2"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T01:40:57.807113Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt","titleSource":"AMZN","descriptionSource":"AMZN","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it.","score":8.2,"severity":"high","published":"2026-10-22T20:34:50.961Z","modified":"2026-10-29T01:52:06.755Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"AWS","name":"aws-c-mqtt","platforms":[],"versions":[{"version":"0.9.1","status":"affected","lessThan":"0.16.2","versionType":"custom"}],"defaultStatus":"unaffected","cpes":[],"source":"AMZN","url":"https://www.cve.org/CVERecord?id=CVE-2026-115417"}],"remediation":[],"references":["https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2","https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5","https://aws.amazon.com/security/security-bulletins/2026-147-aws/"],"sources":[{"name":"CVE","id":"CVE-2026-115417","modified":"2026-10-29T01:52:06.755Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-115417"}],"assessments":[{"source":"AMZN","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},{"source":"AMZN","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","score":8.2}],"sourceAffected":[],"observedAt":"2026-10-29T14:34:24.379Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T06:30:31.757Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T08:55:33.180Z","attemptedAt":"2026-10-29T08:55:33.180Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-29T08:55:33.520Z","attemptedAt":"2026-10-29T08:55:33.520Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T08:55:33.034Z","attemptedAt":"2026-10-29T08:55:33.034Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T08:55:33.373Z","attemptedAt":"2026-10-29T08:55:33.373Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-108508","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108508","modified":"Oct 29, 2026, 1:52:06 AM","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","checkedAt":"2026-10-29T08:55:33.034Z"},{"source":"NVD","id":"CVE-2026-115417","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115417","modified":"2026-10-29T02:16:50.483","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","checkedAt":"2026-10-29T08:55:33.180Z"},{"source":"NVD","id":"CVE-2026-115417","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115417","modified":"2026-10-29T02:16:50.483","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-29T08:55:33.180Z"},{"source":"FIRST EPSS","id":"CVE-2026-115417","url":"https://www.first.org/epss/","probability":0.0035,"percentile":0.28564,"date":"2026-10-28","checkedAt":"2026-10-29T08:55:33.373Z"}],"aiSummary":{"text":"AWS aws-c-mqtt before 0.16.2 has a memory allocation issue with excessive size value in the MQTT 3.1.1 compatibility adapter, which might allow a remote actor to cause a denial of service. The affected version is 0.9.1 and earlier. A remote actor is required to exploit this weakness.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:39:28.949Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-115417"}]}}