{"id":"CVE-2026-92159","title":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications","summary":"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…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-130","CWE-805"],"vendor":"nasa","product":"fprime","affected":["fprime < 4.3.0"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:17:48.590","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92159","references":[{"url":"https://github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd15812dde96","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/pull/4878","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/releases/tag/v4.3.0a1","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T18:56:18.426514Z"},"ingestedAt":"2026-10-14T18:47:39.323Z","epss":0.00445,"epssPercentile":0.3856,"slug":"CVE-2026-92159","body":"## Overview\n\nF´ (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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":222666,"id":"CVE-2026-92159","ts":1792092494781,"field":"exploit_available","old":"false","new":"true"}]}