Vulnerability in Nasa Fprime
CVE-2026-92156
F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::EventManager loqQueue_internalInterfaceHandler packetization is vulnerable because EventManager accepts up to the framework LogBuffer maximum, but packet descriptor, event identifier, and time-tag metadata consume part of the larger ComBuffer and leave a smaller remaining budget for log arguments; serialization failure then reaches an assertion. When a deployment bridges events through GenericHub into EventManager and forwards a legal Fw::LogBuffer larger than EventManager remaining log-argument budget, under standard F Prime assertion handling, a legal bridged event payload aborts or resets the process, causing denial of service. This issue is fixed in version 4.3.0.
Published .
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:N/A:H.
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-2026-92156?
- CVE-2026-92156 is a medium-severity vulnerability in Nasa Fprime, classified under Incorrect Calculation of Buffer Size. CVSS score: 6.5/10. Published 2026-10-14.
- How severe is CVE-2026-92156?
- Medium severity. CVSS v3 base score is 6.5 out of 10.