Integer overflow in Nasa Fprime
CVE-2026-92160
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 the wrapping sum bypasses file-range validation, becomes m_endOffset, and leaves m_byteOffset greater than the wrapped end offset. When an existing source file is larger than the supplied startOffset and a caller able to issue SendPartial supplies a length whose U32 sum with that offset wraps, the first data-packet send reaches FW_ASSERT and aborts or resets the process, causing denial of service. This issue is fixed in version 4.3.0.
Vulnerability class: Integer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Nasa Fprime — versions < 4.3.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-92160?
- CVE-2026-92160 is a medium-severity vulnerability in Nasa Fprime, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2026-10-14.
- How severe is CVE-2026-92160?
- Medium severity. CVSS v3 base score is 6.5 out of 10.