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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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-03 | Updated 2026-04-03 | Assigner VulDB




MEDIUM: 5.3CVSS: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
MEDIUM: 6.3CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
5.8AV:A/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:ND/RC:UR

Problem types

Heap-based Buffer Overflow

Memory Corruption

Product status

7.0
affected

Timeline

2026-04-03:Advisory disclosed
2026-04-03:VulDB entry created
2026-04-03:VulDB entry last update

Credits

0rbitingZer0 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/355078 (VDB-355078 | NASA cFS CCSDS Packet Header to_lab_passthru_encode.c CFE_MSG_GetSize heap-based overflow) vdb-entry technical-description

vuldb.com/vuln/355078/cti (VDB-355078 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/781950 (Submit #781950 | NASA cFS 7.0.0 Heap over-read via untrusted CCSDS length in TO_LAB sendto) third-party-advisory

github.com/nasa/cFS/issues/952 issue-tracking

github.com/nasa/cFS/ product

cve.org (CVE-2026-5474)

nvd.nist.gov (CVE-2026-5474)

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