CVE-2026-92155 Details
Description
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.
A denial-of-service vulnerability has been identified in the F Prime framework, specifically in versions prior to 4.2.0. The issue arises in the FileUplink service, where the deserialization of file packets can lead to a process crash. This occurs because the type byte of the packet is not properly validated before being cast to an enumeration, allowing unknown values to trigger an assertion failure. When this happens, the default Ref application process is aborted or reset, causing a denial-of-service condition.
Users can update to F Prime version 4.3 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nasa/fprime/commit/cacdd555456bd83ab395b521d56c0330470ea798 | [email protected] | Source CodeVendor |
| https://github.com/nasa/fprime/pull/4919 | [email protected] | Issue TrackingVendor |
| https://github.com/nasa/fprime/releases/tag/v4.2.0 | [email protected] | Release NotesVendor |
| https://github.com/nasa/fprime/security/advisories/GHSA-3534-8qg7-6cf5 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-617 | Reachable Assertion | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| F Prime | <= 4.2.0a1 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | [email protected] |