CVE-2026-92157F´: FileDownlink SendPartial integer overflow lets legal startOffset/length values reach a reachable assertion
Updated under an hour ago ()
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It affects nasa fprime. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, 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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-190, CWE-617
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- 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 4.3.0 | CNA record |
References
- https://github.com/nasa/fprime/security/advisories/GHSA-hcmw-g425-8h9gx-refsource-confirm
- https://github.com/nasa/fprime/pull/5565x-refsource-misc
- https://github.com/nasa/fprime/commit/33fe2a4fe3fd5ff1b14985669fbad09f070e9914x-refsource-misc
- https://github.com/nasa/fprime/commit/95eeb5cfb44e5609eff0887f0e11e640cdacef6bx-refsource-misc
- https://github.com/nasa/fprime/releases/tag/v4.3.0x-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.