CVE-2026-92159

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::TlmPacketizer TlmRecv_handler fixed-slot copy TlmRecv_handler copies val.getSize bytes into entry.channelSize storage without confirming that the runtime value fits. When a telemetry update for a configured channel carries a serialized value larger than that channel fixed slot, the copy overwrites adjacent channel fields and causes corrupted packetized telemetry to be emitted. This issue is fixed in version 4.3.0.

• CWE-130
• CWE-805

• https://github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd15812dde96
• https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755
• https://github.com/nasa/fprime/pull/4878
• https://github.com/nasa/fprime/releases/tag/v4.3.0a1
• https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83
• https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83

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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