CVE-2026-5474 Details
Description
A vulnerability was found in NASA cFS up to 7.0.0. This affects the function CFE_MSG_GetSize of the file apps/to_lab/fsw/src/to_lab_passthru_encode.c of the component CCSDS Packet Header Handler. Performing a manipulation results in heap-based buffer overflow. The attacker must have access to the local network to execute the attack. The project was informed of the problem early through an issue report but has not responded yet.
A heap-based buffer overflow vulnerability has been identified in NASA's Core Flight System (cFS) version 7.0.0. The issue arises in the 'TO_LAB' application within the CCSDS Packet Header Handler component. The vulnerability is triggered when the 'CFE_MSG_GetSize' function reads an inflated length from the CCSDS header and passes it to 'OS_SocketSendTo()' without proper validation. This flaw allows an attacker to send a crafted message that exploits the length discrepancy, causing adjacent heap memory to be read and transmitted over UDP. The vulnerability requires access to the local network for exploitation.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nasa/cFS/ | [email protected] | Product |
| https://github.com/nasa/cFS/issues/952 | [email protected] | Issue Tracking |
| https://vuldb.com/submit/781950 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/355078 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/355078/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-122 | Heap-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nasa core flight system | <= 7.0.0 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 30, 2026 | Initial Analysis | [email protected] |
| Apr 3, 2026 | New CVE Received | [email protected] |