Vulnerability in Nasa Fprime
CVE-2026-92155
F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Fw::FilePacket deserialization used by Svc::FileUplink is vulnerable because Header deserialization casts the byte to the Type enum without validating its range and FilePacket::fromSerialBuffer reaches a default FW_ASSERT. When a network file packet contains an unknown file-packet type byte, the assertion aborts or resets the default Ref application process, causing denial of service. This issue is fixed in version 4.2.0.
Published .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/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 < 4.2.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-92155?
- CVE-2026-92155 is a high-severity vulnerability in Nasa Fprime, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-10-14.
- How severe is CVE-2026-92155?
- High severity. CVSS v3 base score is 7.5 out of 10.