Medium 6.5Published Oct 14, 2026

CVE-2026-92159F´: TlmPacketizer copies oversized telemetry past configured channel slots and emits corrupted packetized telemetry

Updated under an hour ago (2026-10-19 10:20 UTC)

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It affects nasa fprime. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for nasa fprime

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE): CWE-130, CWE-805
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

nasa fprime nasa:fprime (from the name)	before 4.3.0	CNA record

References

https://github.com/nasa/fprime/security/advisories/GHSA-grrq-8rmr-xf83x-refsource-confirm
https://github.com/nasa/fprime/pull/4878x-refsource-misc
https://github.com/nasa/fprime/commit/048fe04062b91be7af138df7e09cdd15812dde96x-refsource-misc
https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755x-refsource-misc
https://github.com/nasa/fprime/releases/tag/v4.3.0a1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.