NASA cFS up to 7.0.0 on 32-bit cfe_tbl_passthru_codec.c CFE_TBL_ValidateCodecLoadSize integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.5$0-$5k0.49

Summaryinfo

A vulnerability described as critical has been identified in NASA cFS up to 7.0.0 on 32-bit. Affected by this vulnerability is the function CFE_TBL_ValidateCodecLoadSize of the file cfe/modules/tbl/fsw/src/cfe_tbl_passthru_codec.c. The manipulation results in integer overflow. This vulnerability is known as CVE-2026-5476. No exploit is available. A fix is planned for the upcoming version milestone of the project.

Detailsinfo

A vulnerability, which was classified as critical, was found 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 with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-5476. The exploitability is told to be difficult. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/03/2026).

A fix is planned for the upcoming version milestone of the project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-18814). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.6
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/03/2026 Advisory disclosed
04/03/2026 +0 days VulDB entry created
04/03/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 954
Status: Not defined

CVE: CVE-2026-5476 (🔒)
GCVE (CVE): GCVE-0-2026-5476
GCVE (VulDB): GCVE-100-355080
EUVD: 🔒

Entryinfo

Created: 04/03/2026 09:56
Updated: 04/03/2026 21:37
Changes: 04/03/2026 09:56 (55), 04/03/2026 21:37 (1)
Complete: 🔍
Submitter: 0rbitingZer0
Cache ID: 216:FCB:103

Submitinfo

Accepted

  • Submit #781971: NASA cFS 7.0.0 Integer overflow in CFE_TBL_ValidateCodecLoadSize bypasses boun (by 0rbitingZer0)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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