CVE-2026-92155

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Fw::FilePacket deserialization used by Svc::FileUplink is vulnerable because Header deserialization casts the byte to the Type enum without validating its range and FilePacket::fromSerialBuffer reaches a default FW_ASSERT. When a network file packet contains an unknown file-packet type byte, the assertion aborts or resets the default Ref application process, causing denial of service. This issue is fixed in version 4.2.0.

• CWE-617

• 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-3534-8qg7-6cf5

Published

Oct 14, 2026

Last Modified

Oct 15, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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