Memory Corruption in NASA cFS Affects CCSDS Header Size Handler
CVE-2026-5475

5.1MEDIUM

Key Information:

Vendor

Nasa

Status
Cfs
Vendor
CVE Published:
3 April 2026

What is CVE-2026-5475?

A vulnerability has been identified in NASA's cFS up to version 7.0.0, which affects the CFE_SB_TransmitMsg function located in the cfe_sb_priv.c file. This vulnerability allows for potential memory corruption due to inadequate handling of the CCSDS header size during message transmission, which could be exploited through carefully crafted manipulation. Despite an issue report highlighting the problem, the project maintainers have yet to provide a response or patch.

Affected Version(s)

cFS 7.0

References

https://vuldb.com/vuln/355079
vdb-entrytechnical-description
https://vuldb.com/vuln/355079/cti
signaturepermissions-required
https://vuldb.com/submit/781951
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

0rbitingZer0 (VulDB User)
VulDB CNA Team
.