What is CVE-2026-92159?

CVE-2026-92159 is a medium-severity vulnerability in Nasa Fprime, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 6.5/10. Published 2026-10-14.

How severe is CVE-2026-92159?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Nasa Fprime

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.

Published 2026-10-14.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Nasa Fprime — versions < 4.3.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-92159?: CVE-2026-92159 is a medium-severity vulnerability in Nasa Fprime, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-92159?: Medium severity. CVSS v3 base score is 6.5 out of 10.