CVE-2025-37844
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
cifs: avoid NULL pointer dereference in dbg call
cifs_server_dbg() implies server to be non-NULL so move call under condition to avoid NULL pointer dereference.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.30%
- Percentil entre todas las CVEs puntuadas: 21
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/20048e658652e731f5cadf4a695925e570ca0ff9
- https://git.kernel.org/stable/c/6c14ee6af8f1f188b668afd6d003f7516a507b08
- https://git.kernel.org/stable/c/864ba5c651b03830f36f0906c21af05b15c1aaa6
- https://git.kernel.org/stable/c/9c9000cb91b986eb7f75835340c67857ab97c09b
- https://git.kernel.org/stable/c/b2a1833e1c63e2585867ebeaf4dd41494dcede4b
- https://git.kernel.org/stable/c/b4885bd5935bb26f0a414ad55679a372e53f9b9b
- https://git.kernel.org/stable/c/ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3
- https://git.kernel.org/stable/c/e0717385f5c51e290c2cd2ad4699a778316b5132
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-37844",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"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"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "9c9000cb91b986eb7f75835340c67857ab97c09b",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "b2a1833e1c63e2585867ebeaf4dd41494dcede4b",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "864ba5c651b03830f36f0906c21af05b15c1aaa6",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "e0717385f5c51e290c2cd2ad4699a778316b5132",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "20048e658652e731f5cadf4a695925e570ca0ff9",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "6c14ee6af8f1f188b668afd6d003f7516a507b08",
"versionType": "git"
},
{
"status": "affected",
"version": "e79b0332ae06b4895dcecddf4bbc5d3917e9383c",
"lessThan": "b4885bd5935bb26f0a414ad55679a372e53f9b9b",
"versionType": "git"
},
{
"status": "affected",
"version": "53e83828d352304fec5e19751f38ed8c65e6ec2f",
"versionType": "git"
},
{
"status": "affected",
"version": "5.6.7",
"lessThan": "5.7",
"versionType": "semver"
}
],
"programFiles": [
"fs/smb/client/smb2misc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.237",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.181",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.135",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.88",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.24",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.12",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14.3",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/client/smb2misc.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-05-09T07:16:05.190",
"references": [
{
"url": "https://git.kernel.org/stable/c/20048e658652e731f5cadf4a695925e570ca0ff9",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6c14ee6af8f1f188b668afd6d003f7516a507b08",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/864ba5c651b03830f36f0906c21af05b15c1aaa6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9c9000cb91b986eb7f75835340c67857ab97c09b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b2a1833e1c63e2585867ebeaf4dd41494dcede4b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b4885bd5935bb26f0a414ad55679a372e53f9b9b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e0717385f5c51e290c2cd2ad4699a778316b5132",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: avoid NULL pointer dereference in dbg call\n\ncifs_server_dbg() implies server to be non-NULL so\nmove call under condition to avoid NULL pointer dereference.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: evitar la desreferencia de puntero nulo en la llamada a dbg. cifs_server_dbg() implica que el servidor no es nulo, por lo que se mueve la llamada bajo condición para evitar la desreferencia de puntero nulo. Encontrada por el Centro de Verificación de Linux (linuxtesting.org) con SVACE."
}
],
"lastModified": "2026-06-17T09:15:33.170",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DE8918E9-DA45-4659-A947-68CAA6785A78",
"versionEndExcluding": "5.10.237",
"versionStartIncluding": "5.6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "12331C9E-F601-4EFC-899E-369F98DCC70B",
"versionEndExcluding": "5.15.181",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5B9ACE29-7445-4B6F-B761-6367C005E275",
"versionEndExcluding": "6.1.135",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E5947E5-45E3-462A-829B-382B3B1C61BD",
"versionEndExcluding": "6.6.88",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1D35A8A8-F3EC-45E6-AD37-1F154B27529D",
"versionEndExcluding": "6.12.24",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4A475784-BF3B-4514-81EE-49C8522FB24A",
"versionEndExcluding": "6.13.12",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "483E2E15-2135-4EC6-AB64-16282C5EF704",
"versionEndExcluding": "6.14.3",
"versionStartIncluding": "6.14"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}