CVE-2026-118384
Full vulnerability record from the local CVENow database.
Description
GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c.
Severity
MEDIUM
CVSS score
6.1
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-10-28 03:17:14.757000
Last modified
2026-10-28 15:21:31.673000
View original CVE JSON
{
"id": "CVE-2026-118384",
"sourceIdentifier": "[email protected]",
"published": "2026-10-28T03:17:14.757",
"lastModified": "2026-10-28T15:21:31.673",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "GNU",
"product": "mtools",
"defaultStatus": "unknown",
"modules": [
"mdir",
"mcopy"
],
"programFiles": [
"vfat.c"
],
"versions": [
{
"version": "0",
"lessThanOrEqual": "4.0.49",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 4.2
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-839"
}
]
}
],
"references": [
{
"url": "https://ftp.gnu.org/gnu/mtools/mtools-4.0.49.tar.gz",
"source": "[email protected]"
},
{
"url": "https://github.com/deepin-community/mtools/blob/16d295331a1cfbcf02ad0b2f03c9b906197cf3ee/vfat.c#L399",
"source": "[email protected]"
},
{
"url": "https://github.com/deepin-community/mtools/blob/16d295331a1cfbcf02ad0b2f03c9b906197cf3ee/vfat.c#L444-L445",
"source": "[email protected]"
},
{
"url": "https://lists.gnu.org/archive/html/info-gnu/2025-06/msg00004.html",
"source": "[email protected]"
}
]
}