{"id":"CVE-2026-92159","state":"PUBLISHED","title":"F´: TlmPacketizer copies oversized telemetry past configured channel slots and emits corrupted packetized telemetry","description":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::TlmPacketizer TlmRecv_handler fixed-slot copy TlmRecv_handler copies val.getSize bytes into entry.channelSize storage without confirming that the runtime value fits. When a telemetry update for a configured channel carries a serialized value larger than that channel fixed slot, the copy overwrites adjacent channel fields and causes corrupted packetized telemetry to be emitted. This issue is fixed in version 4.3.0.","publishedAt":"2026-10-14T17:12:47.065Z","updatedAt":"2026-10-15T18:56:42.827Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["nasa fprime"],"affected":[{"vendor":"nasa","product":"fprime","versions":[{"version":"< 4.3.0","status":"affected"}]}],"references":["https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83","https://github.com/nasa/fprime/pull/4878","https://github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd15812dde96","https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","https://github.com/nasa/fprime/releases/tag/v4.3.0a1"],"weaknesses":["CWE-130","CWE-805"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92159.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92159","state":"PUBLISHED","datePublished":"2026-10-14T17:12:47.065Z","dateUpdated":"2026-10-15T18:56:42.827Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-09-15T17:13:57.865Z"},"containers":{"cna":{"title":"F´: TlmPacketizer copies oversized telemetry past configured channel slots and emits corrupted packetized telemetry","descriptions":[{"lang":"en","value":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::TlmPacketizer TlmRecv_handler fixed-slot copy TlmRecv_handler copies val.getSize bytes into entry.channelSize storage without confirming that the runtime value fits. When a telemetry update for a configured channel carries a serialized value larger than that channel fixed slot, the copy overwrites adjacent channel fields and causes corrupted packetized telemetry to be emitted. This issue is fixed in version 4.3.0."}],"affected":[{"vendor":"nasa","product":"fprime","versions":[{"version":"< 4.3.0","status":"affected"}]}],"references":[{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83","name":"https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nasa/fprime/pull/4878","name":"https://github.com/nasa/fprime/pull/4878","tags":["x_refsource_MISC"]},{"url":"https://github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd15812dde96","name":"https://github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd15812dde96","tags":["x_refsource_MISC"]},{"url":"https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","name":"https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","tags":["x_refsource_MISC"]},{"url":"https://github.com/nasa/fprime/releases/tag/v4.3.0a1","name":"https://github.com/nasa/fprime/releases/tag/v4.3.0a1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-130","lang":"en","description":"CWE-130: Improper Handling of Length Parameter Inconsistency","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-805","lang":"en","description":"CWE-805: Buffer Access with Incorrect Length Value","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-14T17:12:47.065Z"},"source":{"advisory":"GHSA-grrq-8rmr-xf83","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T18:56:18.426514Z","id":"CVE-2026-92159","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-15T18:56:42.827Z"}}]}}}