What’s Vulnerable › Vulnerabilities

CVE-2026-92151: F´: SpacePacketDeframer Small Packet Assertion DoS

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-15
• Weakness: CWE-617

Description

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::Ccsds::SpacePacketDeframer dataIn_handler is vulnerable because the handler treats the minimum packet-length condition as FW_ASSERT rather than rejecting and returning the buffer. When a CCSDS telecommand frame leaves a payload of six bytes or fewer after TcDeframer removes its header and trailer, the assertion aborts or resets the flight-software process, causing denial of service. This issue is fixed in version 4.2.0.

Affected products

• nasa fprime: before 4.2.0

References

• https://github.com/nasa/fprime/commit/cacdd555456bd83ab395b521d56c0330470ea798
• https://github.com/nasa/fprime/pull/4919
• https://github.com/nasa/fprime/releases/tag/v4.2.0
• https://github.com/nasa/fprime/security/advisories/GHSA-4rjh-jqvx-r8j5
• https://github.com/nasa/fprime/security/advisories/GHSA-4rjh-jqvx-r8j5

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