CVE-2026-5474
Low
No strong exploitation signal.
CVSS base
6.3
MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS — probability of exploitation (30 days)
0.4%
31.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-119
Published 2026-04-03 · modified 2026-07-24
CVSS breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
| Attack Vector | A | Adjacent |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | L | Low |
| Availability | L | Low |
Timeline
- 2026-04-03 — Published (NVD)
- 2026-07-24 — Last modified (NVD)
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.