{"id":"CVE-2026-92154","published":"2026-10-14T18:19:34.630","lastModified":"2026-10-15T19:17:48.477","description":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FileUplink handleDataPacket offset and size validation is vulnerable because the component checks byteOffset plus dataSize with wrapping U32 arithmetic and then seeks to the large attacker-controlled offset before writing. When a file-uplink DATA packet supplies a byteOffset and dataSize whose unsigned sum wraps below the declared file size, data can be written beyond the declared upload size, causing file integrity loss and potentially large sparse-file growth or resource exhaustion. This issue is fixed in version 4.2.0.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwes":["CWE-190"],"vendors":[],"products":[],"references":[{"url":"https://github.com/nasa/fprime/commit/cacdd555456bd83ab395b521d56c0330470ea798","tags":[]},{"url":"https://github.com/nasa/fprime/pull/4919","tags":[]},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-wx8q-q5gx-f54p","tags":[]},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-wx8q-q5gx-f54p","tags":[]}],"exploitRefs":[{"url":"https://github.com/nasa/fprime/commit/cacdd555456bd83ab395b521d56c0330470ea798","tags":[]},{"url":"https://github.com/nasa/fprime/pull/4919","tags":[]},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-wx8q-q5gx-f54p","tags":[]},{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-wx8q-q5gx-f54p","tags":[]}],"hasPoc":true,"ai":null}