CVE-2026-5474 - NASA cFS CCSDS Packet Header to_lab_passthru_encode.c CFE_MSG_GetSize heap-based overflow

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MEDIUM

NASA cFS CCSDS Packet Header to_lab_passthru_encode.c CFE_MSG_GetSize heap-based overflow

Published Apr 3, 2026

5.3

MEDIUM

CVSS 4.0

EPSS 0.61%

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.

Affected products

Vendor NASA Product cFS Default
n/a
- Version
  7.0
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

NASA

cFS

n/a

Version	Status	Constraints
7.0	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-119

Buffer Overflow

CWE-122

References (6)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-18807
Advisory
https://github.com/nasa/cFS/
product
https://github.com/nasa/cFS/issues/952
issue-trackingIssue Tracking
https://vuldb.com/submit/781950
third-party-advisoryThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/355078
vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/355078/cti
signaturepermissions-requiredPermissions RequiredVDB Entry

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-18807		Advisory
https://github.com/nasa/cFS/		product
https://github.com/nasa/cFS/issues/952		issue-trackingIssue Tracking
https://vuldb.com/submit/781950		third-party-advisoryThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/355078		vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/355078/cti		signaturepermissions-requiredPermissions RequiredVDB Entry