CVE-2026-5475

MEDIUM

NASA cFS CCSDS Header Size cfe_sb_priv.c CFE_SB_TransmitMsg memory corruption

Title source: cna
STIX 2.1

Description

A vulnerability was determined in NASA cFS up to 7.0.0. This impacts the function CFE_SB_TransmitMsg of the file cfe_sb_priv.c of the component CCSDS Header Size Handler. Executing a manipulation can lead to memory corruption. The project was informed of the problem early through an issue report but has not responded yet.

References (5)

Core 5
Core References
Signature, Permissions Required signature permissions-required
VDB-355079 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/355079/cti
Third Party Advisory third-party-advisory
Submit #781951 | NASA cFS 7.0.0 CFE_SB_TransmitMsg memcpy trusts CCSDS header size without sourc
https://vuldb.com/submit/781951
Issue Tracking issue-tracking
https://github.com/nasa/cFS/issues/953
Vdb Entry, Technical Description vdb-entry technical-description
VDB-355079 | NASA cFS CCSDS Header Size cfe_sb_priv.c CFE_SB_TransmitMsg memory corruption
https://vuldb.com/vuln/355079

Scores

CVSS v3 5.5
EPSS 0.0022
EPSS Percentile 12.1%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119
Status published
Products (2)
NASA/cFS 7.0
nasa/core_flight_system < 7.0.0
Published Apr 03, 2026
Tracked Since Apr 03, 2026