Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-92152F´: Unvalidated Port Index in GenericHub

Critical 9.3

In plain English

A critical-severity security flaw in fprime from nasa. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.7%top 47.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. From 4.1.0 until 4.2.0, Svc::GenericHub output-port dispatch is vulnerable because the deserialized port field is passed to serialOut_out, bufferOut_out, eventOut_out, or tlmOut_out without an explicit range check. When a remote hub packet supplies a port index outside the configured output-port array, assert-enabled builds abort, while builds without assertions can access an output-port array out of bounds, corrupt heap memory, and potentially allow remote code execution. This issue is fixed in version 4.2.0.

Affected products (as reported)

Vendor	Product	Versions
nasa	fprime	>= 4.1.0, < 4.2.0

Weakness: CWE-129 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/nasa/fprime/security/advisories/GHSA-vv4x-5pmf-m59g x_refsource_CONFIRM
https://github.com/nasa/fprime/pull/4929 x_refsource_MISC
https://github.com/nasa/fprime/commit/b56b53634fd4251ae84919f22dcff829ef9e0986 x_refsource_MISC
https://github.com/nasa/fprime/releases/tag/v4.2.0 x_refsource_MISC