{"id":"CVE-2026-92157","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::FileDownlink SendPartial range validation is vulnerable because unchecked startOffset plus …","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-190","CWE-617"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T18:19:35.073","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92157","references":[{"url":"https://github.com/nasa/fprime/commit/33fe2a4fe3fd5ff1b14985669fbad09f070e9914","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/commit/95eeb5cfb44e5609eff0887f0e11e640cdacef6b","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/pull/5565","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/releases/tag/v4.3.0","label":"security-advisories@github.com"},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-hcmw-g425-8h9g","label":"security-advisories@github.com"}],"tags":["nvd"],"ingestedAt":"2026-10-14T18:47:39.322Z","slug":"CVE-2026-92157","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::FileDownlink SendPartial range validation is vulnerable because unchecked startOffset plus length arithmetic bypasses the range check and stores a wrapped m_endOffset that is inconsistent with m_byteOffset. When an existing source file is larger than a valid startOffset and a SendPartial command supplies a length whose U32 sum with that offset wraps below the file size, under standard F Prime assertion handling, the first data-packet transition reaches FW_ASSERT and aborts or resets the process, causing denial of service. 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":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}