{"id":"CVE-2026-77237","state":"PUBLISHED","title":"Missing type validation in xQueueAddToSet in FreeRTOS-Kernel","description":"Missing queue-set type validation in xQueueAddToSet() in the FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports with configUSE_QUEUE_SETS=1 to read privileged kernel memory. To remediate this issue, users should upgrade to version 11.3.1 or later.","publishedAt":"2026-08-21T17:52:13.360Z","updatedAt":"2026-08-21T20:15:45.332Z","severity":{"score":8.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","source":"AMZN"},"assigner":"AMZN","products":["FreeRTOS FreeRTOS-Kernel"],"affected":[{"vendor":"FreeRTOS","product":"FreeRTOS-Kernel","defaultStatus":"unaffected","versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"11.3.0","versionType":"custom"}]}],"references":["https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1","https://aws.amazon.com/security/security-bulletins/2026-086-aws/","https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-9wvc-hqvx-5wf5"],"weaknesses":["CWE-843","CWE-125"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77237.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77237","state":"PUBLISHED","datePublished":"2026-08-21T17:52:13.360Z","dateUpdated":"2026-08-21T20:15:45.332Z","assignerShortName":"AMZN","assignerOrgId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","dateReserved":"2026-08-20T18:42:40.533Z"},"containers":{"cna":{"title":"Missing type validation in xQueueAddToSet in FreeRTOS-Kernel","descriptions":[{"lang":"en","value":"Missing queue-set type validation in xQueueAddToSet() in the FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports with configUSE_QUEUE_SETS=1 to read privileged kernel memory. To remediate this issue, users should upgrade to version 11.3.1 or later."}],"affected":[{"vendor":"FreeRTOS","product":"FreeRTOS-Kernel","defaultStatus":"unaffected","versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"11.3.0","versionType":"custom"}]}],"references":[{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1","tags":["patch"]},{"url":"https://aws.amazon.com/security/security-bulletins/2026-086-aws/","tags":["vendor-advisory"]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-9wvc-hqvx-5wf5","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.5,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-843","lang":"en","description":"CWE-843 Access of resource using incompatible type ('type confusion')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125 Out-of-bounds read","type":"CWE"}]}],"providerMetadata":{"shortName":"AMZN","orgId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","dateUpdated":"2026-08-21T20:15:45.332Z"},"impacts":[{"capecId":"CAPEC-129","descriptions":[{"lang":"en","value":"CAPEC-129 Pointer Manipulation"}]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.4.0","versionEndIncluding":"11.3.0"}]}]}],"credits":[{"lang":"en","value":"NVIDIA","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-77237","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-08-21T19:44:13.987045Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-21T20:08:37.214Z"}}]}}}