CVE-2026-5476

Name: CVE-2026-5476
Creator: NVD / NIST
Published: 2026-04-03T18:16:26.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2026-5476 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. A vulnerability was identified in NASA cFS up to 7.0.0 on 32-bit. Affected is the function CFE_TBL_ValidateCodecLoadSize of the file cfe/modules/tbl/fsw/src/cfe_tbl_passthru_codec.c. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

A vulnerability was identified in NASA cFS up to 7.0.0 on 32-bit. Affected is the function CFE_TBL_ValidateCodecLoadSize of the file cfe/modules/tbl/fsw/src/cfe_tbl_passthru_codec.c. The manipulation leads to integer overflow. The complexity of an attack is rather high. The exploitability is told to be difficult. A fix is planned for the upcoming version milestone of the project.

Metrics

CVSS 3.1

4.6/10

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS 4.0

2.1/10

CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.21%

11.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nasa	Core Flight System	<= 7.0.0

References

https://github.com/nasa/cFS/Product
https://github.com/nasa/cFS/issues/954Issue Tracking
https://vuldb.com/submit/781971Third Party Advisory, VDB Entry
https://vuldb.com/vuln/355080Third Party Advisory, VDB Entry
https://vuldb.com/vuln/355080/ctiPermissions Required, VDB Entry

Timeline

Published: Apr 3, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5476?

How severe is CVE-2026-5476?

CVE-2026-5476 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5476?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST