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vuln-cve/data/2025/21xxx/CVE-2025-21963.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-21963",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-12-29T08:45:45.795Z",
"datePublished": "2025-04-01T15:46:59.773Z",
"dateUpdated": "2026-05-11T21:09:55.850Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:09:55.850Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix integer overflow while processing acdirmax mount option\n\nUser-provided mount parameter acdirmax of type u32 is intended to have\nan upper limit, but before it is validated, the value is converted from\nseconds to jiffies which can lead to an integer overflow.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/smb/client/fs_context.c"
],
"versions": [
{
"version": "4c9f948142a550af416a2bfb5e56d29ce29e92cf",
"lessThan": "0c26edf477e093cefc41637f5bccc102e1a77399",
"status": "affected",
"versionType": "git"
},
{
"version": "4c9f948142a550af416a2bfb5e56d29ce29e92cf",
"lessThan": "39d086bb3558da9640ef335f97453e01d32578a1",
"status": "affected",
"versionType": "git"
},
{
"version": "4c9f948142a550af416a2bfb5e56d29ce29e92cf",
"lessThan": "9e438d0410a4002d24f420f2c28897ba2dc0af64",
"status": "affected",
"versionType": "git"
},
{
"version": "4c9f948142a550af416a2bfb5e56d29ce29e92cf",
"lessThan": "2809a79bc64964ce02e0c5f2d6bd39b9d09bdb3c",
"status": "affected",
"versionType": "git"
},
{
"version": "4c9f948142a550af416a2bfb5e56d29ce29e92cf",
"lessThan": "6124cbf73e3dea7591857dd63b8ccece28952afd",
"status": "affected",
"versionType": "git"
},
{
"version": "4c9f948142a550af416a2bfb5e56d29ce29e92cf",
"lessThan": "5b29891f91dfb8758baf1e2217bef4b16b2b165b",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/smb/client/fs_context.c"
],
"versions": [
{
"version": "5.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.180",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.132",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.84",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.20",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13.8",
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.14",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "5.15.180"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.1.132"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.6.84"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.12.20"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.13.8"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.12",
"versionEndExcluding": "6.14"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/0c26edf477e093cefc41637f5bccc102e1a77399"
},
{
"url": "https://git.kernel.org/stable/c/39d086bb3558da9640ef335f97453e01d32578a1"
},
{
"url": "https://git.kernel.org/stable/c/9e438d0410a4002d24f420f2c28897ba2dc0af64"
},
{
"url": "https://git.kernel.org/stable/c/2809a79bc64964ce02e0c5f2d6bd39b9d09bdb3c"
},
{
"url": "https://git.kernel.org/stable/c/6124cbf73e3dea7591857dd63b8ccece28952afd"
},
{
"url": "https://git.kernel.org/stable/c/5b29891f91dfb8758baf1e2217bef4b16b2b165b"
}
],
"title": "cifs: Fix integer overflow while processing acdirmax mount option",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2025-21963",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-10-01T19:21:03.805381Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-10-01T19:26:32.336Z"
}
},
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T19:40:05.668Z"
}
}
]
}
}