CVE-2026-41144: vulnerability in nasa fprime
F´ (F Prime) has Integer Overflow in FileUplink
Published · Updated
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3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 0epss 0.4%
F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to version 4.2.0, the bounds check byteOffset + dataSize > fileSize uses U32 addition that wraps around on overflow. An attacker-crafted DataPacket with byteOffset=0xFFFFFF9C and dataSize=100 overflows to 0, bypassing the check entirely. The subsequent file write proceeds at the original ~4GB offset. Additionally, Svc/FileUplink/File.cpp:20-31 performs no sanitization on the destination file path. Combined, these allow writing arbitrary data to any file at any offset. The impact is arbitrary file write leading to remote code execution on embedded targets. Note that this is a logic bug. ASAN does not detect it because all memory accesses are within valid buffers — the corruption occurs in file I/O. Version 4.2.0 contains a patch. No known workarounds are available.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
Affected products
nasa · fprimeRelated CVEs — nasa fprime
In the same product, most dangerous first.
CVE-2026-92158HIGHF´: FpySequencer Integer Overflow in Stack Offset/Size Validation Leading to Out-of-Bounds WriteEPSS 0.9%CVE-2026-92152CRITICALF´: Unvalidated Port Index in GenericHubEPSS 0.7%CVE-2026-92154HIGHF´: File size bounds bypass in Svc::FileUplink via unsigned integer overflow in DATA packet validationEPSS 0.6%CVE-2026-92157MEDIUMF´: FileDownlink SendPartial integer overflow lets legal startOffset/length values reach a reachable assertionEPSS 0.6%CVE-2026-92150HIGHF´: GenericHub Malformed Buffer Assertion DoSEPSS 0.6%CVE-2026-92151HIGHF´: SpacePacketDeframer Small Packet Assertion DoSEPSS 0.5%