{"id":"CVE-2026-92157","summary":"F´: FileDownlink SendPartial integer overflow lets legal startOffset/length values reach a reachable assertion","details":"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.","aliases":["GHSA-hcmw-g425-8h9g"],"modified":"2026-10-15T02:49:35.085991828Z","published":"2026-10-14T17:09:20.199Z","database_specific":{"cwe_ids":["CWE-190","CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92157.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92157.json"},{"type":"FIX","url":"https://github.com/nasa/fprime/commit/33fe2a4fe3fd5ff1b14985669fbad09f070e9914"},{"type":"FIX","url":"https://github.com/nasa/fprime/commit/95eeb5cfb44e5609eff0887f0e11e640cdacef6b"},{"type":"FIX","url":"https://github.com/nasa/fprime/pull/5565"},{"type":"WEB","url":"https://github.com/nasa/fprime/releases/tag/v4.3.0"},{"type":"ADVISORY","url":"https://github.com/nasa/fprime/security/advisories/GHSA-hcmw-g425-8h9g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92157"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nasa/fprime","events":[{"introduced":"0"},{"fixed":"7d8f579f159d2f7c2d4984d92828575e37f87fa6"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"4.3.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v4.3.0b1","v4.3.0a1","v4.2.0","v4.2.0a1","v4.1.1","v4.1.0","v4.0.1a1","v4.0.0a3","v4.0.0","v4.0.0a2","v4.0.0a1","v3.6.0","v3.5.1","v3.5.0","v3.4.3","v3.4.2","v3.4.1","v3.4.0","v3.3.2","v3.3.1","v3.3.0","v3.2.0","v3.1.1","v3.1.0","v3.0.0","NASA-v1.5.3","NASA-v1.5.2","NASA-v1.5.1","NASA-v1.5.0","NASA-v1.3.1","NASA-v1.00"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92157.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}