CVE-2026-118384
Received Received - Intake

Out-of-Bounds Write in GNU mtools vfat.c

Publication date: 2026-10-28

Last updated on: 2026-10-28

Assigner: MITRE

Description
GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c.

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Meta Information

Published
2026-10-28
Last Modified
2026-10-28
Generated
2026-10-28
AI Q&A
2026-10-28
EPSS Evaluated
N/A
NVD
CVE-2026-118384
EUVD
EUVD-2026-111572

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
GNU mtools 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-839 The product checks a value to ensure that it is less than or equal to a maximum, but it does not also verify that the value is greater than or equal to the minimum.

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Executive Summary

GNU mtools through version 4.0.49 contains an out-of-bounds write vulnerability in the parse_vses function located in vfat.c. This flaw allows an attacker to write data beyond the intended memory boundaries, potentially leading to memory corruption or arbitrary code execution.

Impact Analysis

This vulnerability could allow an attacker with local access to execute arbitrary code on your system or cause a denial of service. It may lead to unauthorized data access, system crashes, or further exploitation depending on the attacker's goals.

Mitigation Strategies

Update GNU mtools to version 4.0.50 or later to address the out-of-bounds write vulnerability in parse_vses in vfat.c.

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