CVE-2026-92158F´: FpySequencer Integer Overflow in Stack Offset/Size Validation Leading to Out-of-Bounds Write
Updated under an hour ago ()
Does this affect you?
It affects nasa fprime. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.75%, higher than 54% of scored CVEs.
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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.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-190, CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.75% (percentile 54)
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
nasa fprime nasa:fprime (from the name) | before 4.2.0 | CNA record |
References
- https://github.com/nasa/fprime/security/advisories/GHSA-vfwv-3qv7-jjjqx-refsource-confirm
- https://github.com/nasa/fprime/pull/4534x-refsource-misc
- https://github.com/nasa/fprime/commit/7527430d9ae7c88f3d649d376a45c866b0aed595x-refsource-misc
- https://github.com/nasa/fprime/releases/tag/v4.2.0x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.