CVE-2026-92160

MEDIUM 6.5

F´: SendPartial Integer Overflow Leading to Assertion DoS

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-190 CWE-617
Vendor	nasa
Product	fprime
Published	Oct 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

nasa / fprime

< 4.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/nasa/fprime/security/advisories/GHSA-8r3j-ghrh-55mw github.com: https://github.com/nasa/fprime/pull/5565 github.com: https://github.com/nasa/fprime/commit/33fe2a4fe3fd5ff1b14985669fbad09f070e9914 github.com: https://github.com/nasa/fprime/commit/95eeb5cfb44e5609eff0887f0e11e640cdacef6b github.com: https://github.com/nasa/fprime/releases/tag/v4.3.0