Description
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.
References6
- github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd158…
- github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca1…
- github.com/nasa/fprime/pull/4878
- github.com/nasa/fprime/releases/tag/v4.3.0a1
- github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83
- github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 39 · as of 11 November 2026
- CWE
- CWE-130CWE-805
Could this be exploited in your environment?
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