Buffer overflow in Nasa Fprime
CVE-2026-92158
F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FpySequencer STORE directive stack write validation the bounds check adds attacker-controlled offset and size before memcpy, allowing integer wraparound to make an out-of-range destination appear valid. When a sequence-controlled STORE directive supplies a stack offset and size whose U32 sum wraps, memcpy can write outside the sequencer stack, causing memory corruption, denial of service, and potentially code execution. This issue is fixed in version 4.2.0.
Vulnerability class: Integer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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 < 4.2.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-92158?
- CVE-2026-92158 is a high-severity vulnerability in Nasa Fprime, classified under Integer Overflow or Wraparound. CVSS score: 7.2/10. Published 2026-10-14.
- How severe is CVE-2026-92158?
- High severity. CVSS v3 base score is 7.2 out of 10.