What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-15
• Weakness: CWE-130

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.

Affected products

• nasa fprime: before 4.3.0

References

• 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

Get alerted when CVE-2026-92159 or the next vulnerability affects your stack