F´: FileDownlink SendPartial integer overflow lets legal startOffset/length values reach a reachable assertion

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-92157
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 18:19:35 UTC
Updated2026-10-20 02:17:13 UTC
DescriptionF´ (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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

Problem Types: CWE-190 | CWE-617 | CWE-190 CWE-190: Integer Overflow or Wraparound | CWE-617 CWE-617: Reachable Assertion

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nasa Fprime affected < 4.3.0 Not specified

References

ReferenceSourceLinkTags
github.com/nasa/fprime/pull/5565 [email protected] github.com
github.com/nasa/fprime/releases/tag/v4.3.0 [email protected] github.com
github.com/nasa/fprime/commit/33fe2a4fe3fd5ff1b14985669fbad09f070e9914 [email protected] github.com
github.com/nasa/fprime/security/advisories/GHSA-hcmw-g425-8h9g 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/nasa/fprime/commit/95eeb5cfb44e5609eff0887f0e11e640cdacef6b [email protected] github.com
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