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.

Metrics

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Adjacent Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Nasa
  • Cfs
  • Core Flight System

Configuration 1 [-]

cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://www.spirityenterprise.com/pentest spirity
https://github.com/nasa/cFS/ cve-icon cve-icon
https://github.com/nasa/cFS/issues/952 cve-icon cve-icon
https://vuldb.com/submit/781950 cve-icon cve-icon
https://vuldb.com/vuln/355078 cve-icon cve-icon
https://vuldb.com/vuln/355078/cti cve-icon cve-icon
History

Thu, 30 Apr 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Nasa core Flight System
CPEs cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*
Vendors & Products Nasa core Flight System

Fri, 03 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 03 Apr 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title NASA cFS CCSDS Packet Header to_lab_passthru_encode.c CFE_MSG_GetSize heap-based overflow
First Time appeared Nasa
Nasa cfs
Weaknesses CWE-119
CWE-122
CPEs cpe:2.3:a:nasa:cfs:*:*:*:*:*:*:*:*
Vendors & Products Nasa
Nasa cfs
References
Metrics cvssV2_0

{'score': 5.8, 'vector': 'AV:A/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.3, 'vector': 'CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R'}

cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-04-03T20:02:13.494Z

Reserved: 2026-04-03T07:51:17.409Z

Link: CVE-2026-5474

cve-icon Vulnrichment

Updated: 2026-04-03T20:02:09.314Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-03T17:16:54.450

Modified: 2026-04-30T21:02:33.453

Link: CVE-2026-5474

cve-icon Redhat

No data.