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CVE-2026-92157

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
nasa / fprimeaffected < 4.3.0

CWE

CWE-190, CWE-617

References

ADP enrichment

CISA-ADP

No English description supplied.