{"id":"CVE-2026-119086","aliases":[],"cve":{"records":[{"id":"CVE-2026-119086","source":"AMZN","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-29T13:18:10.340Z","published":"2026-10-30T17:33:51.535Z","modified":"2026-10-30T20:04:33.929Z"}],"publishers":[{"name":"AMZN","role":"CNA","organizationId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","modified":"2026-10-30T17:36:37.406Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T20:04:33.929Z"}],"references":[{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3","tags":["release-notes","patch"],"source":"AMZN"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-158-aws/","tags":["vendor-advisory"],"source":"AMZN"},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v","tags":["third-party-advisory"],"source":"AMZN"}],"weaknesses":[{"id":"CWE-843","description":"CWE-843 Access of resource using incompatible type ('type confusion')","source":"AMZN"},{"id":"CWE-121","description":"CWE-121 Stack-based buffer overflow","source":"AMZN"}],"applicability":[{"source":"AMZN","statements":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.4.0","versionEndIncluding":"11.3.2"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T20:04:17.162661Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel","titleSource":"AMZN","descriptionSource":"AMZN","description":"Missing queue-set type validation in the queue-set selection system call in FreeRTOS-Kernel before V11.3.3 on MPU-enabled ports with queue sets enabled allows a local unprivileged task to write actor-controlled data beyond a pointer-sized object on the privileged kernel stack, affecting privileged memory across the MPU isolation boundary.\n\n\n\nTo remediate this issue, users should upgrade to FreeRTOS-Kernel V11.3.3, rebuild, and reflash affected firmware. Builds that do not enable queue sets are not affected.","score":8.2,"severity":"high","published":"2026-10-30T17:33:51.535Z","modified":"2026-10-30T20:04:33.929Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"FreeRTOS","name":"FreeRTOS-Kernel","platforms":[],"versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"11.3.2","versionType":"custom"}],"defaultStatus":"unaffected","cpes":[],"source":"AMZN","url":"https://www.cve.org/CVERecord?id=CVE-2026-119086"}],"remediation":[],"references":["https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3","https://aws.amazon.com/security/security-bulletins/2026-158-aws/","https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v"],"sources":[{"name":"CVE","id":"CVE-2026-119086","modified":"2026-10-30T20:04:33.929Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119086"}],"assessments":[{"source":"AMZN","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","score":6.5},{"source":"AMZN","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","score":8.2}],"sourceAffected":[],"observedAt":"2026-10-30T20:23:46.233Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T12:55:32.908Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T18:50:37.282Z","attemptedAt":"2026-10-30T18:50:37.282Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-30T18:50:38.180Z","attemptedAt":"2026-10-30T18:50:38.180Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-10-30T18:50:38.364Z","attemptedAt":"2026-10-30T18:50:38.364Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T18:50:38.867Z","attemptedAt":"2026-10-30T18:50:38.867Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-119086","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119086","modified":"2026-10-30T18:17:25.050","score":8.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/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":"2026-10-30T18:50:37.282Z"},{"source":"NVD","id":"CVE-2026-119086","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119086","modified":"2026-10-30T18:17:25.050","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","checkedAt":"2026-10-30T18:50:37.282Z"}],"aiSummary":{"text":"FreeRTOS-Kernel before V11.3.3 has a missing type validation weakness, allowing a local unprivileged task to write controlled data beyond a pointer-sized object on the kernel stack. This affects MPU-enabled ports with queue sets enabled. A local attacker is required.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T05:06:10.243Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119086"}]}}