{"id":"CVE-2026-92157","revision":"68281d8100bd456c8d95b245f3f8cf48","records":[{"revision":"68281d8100bd456c8d95b245f3f8cf48","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-92157","aliases":[],"title":"F´: FileDownlink SendPartial integer overflow lets legal startOffset/length values reach a reachable assertion","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::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.","state":0,"publishedAt":"2026-10-14T17:09:20.199+00:00","modifiedAt":"2026-10-20T01:42:27.964+00:00","affected":[{"ecosystem":"Vendor product","name":"fprime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nasa\",\n                    \"product\": \"fprime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/nasa/fprime/security/advisories/GHSA-hcmw-g425-8h9g","https://github.com/nasa/fprime/pull/5565","https://github.com/nasa/fprime/commit/33fe2a4fe3fd5ff1b14985669fbad09f070e9914","https://github.com/nasa/fprime/commit/95eeb5cfb44e5609eff0887f0e11e640cdacef6b","https://github.com/nasa/fprime/releases/tag/v4.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-92157","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-92157","identifiers":["CVE-2026-92157"]},"retained":false,"historicalAffected":[]}],"coverage":[]}