CVE-2026-23303
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
smb: client: Don't log plaintext credentials in cifs_set_cifscreds
When debug logging is enabled, cifs_set_cifscreds() logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing credentials.
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: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- 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 (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1
- https://git.kernel.org/stable/c/2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d
- https://git.kernel.org/stable/c/3990f352bb0adc8688d0949a9c13e3110570eb61
- https://git.kernel.org/stable/c/3e182701db612ddd794ccd5ed822e6cc1db2b972
- https://git.kernel.org/stable/c/54c570de9a35860dfa85fe668f23ddfda8cc7e26
- https://git.kernel.org/stable/c/b746a357abfb8fdb0a171d51ec5091e786d34be1
- https://git.kernel.org/stable/c/e5a3b11e07b335006371915b2da47b6056c9e3bc
- https://git.kernel.org/stable/c/ff0ece8ed04180c52167c003362284b23cf54e8d
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-23303",
"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": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "e5a3b11e07b335006371915b2da47b6056c9e3bc",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "54c570de9a35860dfa85fe668f23ddfda8cc7e26",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "ff0ece8ed04180c52167c003362284b23cf54e8d",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "3990f352bb0adc8688d0949a9c13e3110570eb61",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "b746a357abfb8fdb0a171d51ec5091e786d34be1",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "3e182701db612ddd794ccd5ed822e6cc1db2b972",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8798a5ff90977d6459ce1d657cf8fe13a51e97",
"lessThan": "2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d",
"versionType": "git"
}
],
"programFiles": [
"fs/smb/client/connect.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.253",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.203",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.167",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.130",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.77",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.17",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.7",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/client/connect.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-03-25T11:16:26.060",
"references": [
{
"url": "https://git.kernel.org/stable/c/2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3990f352bb0adc8688d0949a9c13e3110570eb61",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3e182701db612ddd794ccd5ed822e6cc1db2b972",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/54c570de9a35860dfa85fe668f23ddfda8cc7e26",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b746a357abfb8fdb0a171d51ec5091e786d34be1",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e5a3b11e07b335006371915b2da47b6056c9e3bc",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ff0ece8ed04180c52167c003362284b23cf54e8d",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Don't log plaintext credentials in cifs_set_cifscreds\n\nWhen debug logging is enabled, cifs_set_cifscreds() logs the key\npayload and exposes the plaintext username and password. Remove the\ndebug log to avoid exposing credentials."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nsmb: cliente: No registrar credenciales en texto plano en cifs_set_cifscreds\n\nCuando el registro de depuración está habilitado, cifs_set_cifscreds() registra la carga útil de la clave y expone el nombre de usuario y la contraseña en texto plano. Eliminar el registro de depuración para evitar exponer credenciales."
}
],
"lastModified": "2026-06-17T10:21:17.477",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FE4099A0-CF1A-4587-B409-7ECEFEBD0176",
"versionEndExcluding": "5.10.253",
"versionStartIncluding": "3.3.1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "20DDB3E9-AABF-4107-ADB0-5362AA067045",
"versionEndExcluding": "5.15.203",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2EDC6BAF-B710-4E26-B6AA-D68922EE7B43",
"versionEndExcluding": "6.1.167",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C57BB918-DF28-46B3-94F7-144176841267",
"versionEndExcluding": "6.6.130",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5",
"versionEndExcluding": "6.12.77",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA",
"versionEndExcluding": "6.18.17",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3",
"versionEndExcluding": "6.19.7",
"versionStartIncluding": "6.19"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "938CA222-4FA5-49B6-B828-242572B8208E"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DBFD2ACD-728A-4082-BB6A-A1EF6E58E47D"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C31B0E51-F62D-4053-B04F-FC4D5BC373D2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A914303E-1CB6-4AAD-9F5F-DE5433C4E814"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "203BBA69-90B2-4C5E-8023-C14180742421"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0DBFAB53-B889-4028-AC0E-7E165B152A18"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.3:rc7:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FE409AEC-F677-4DEF-8EB7-2C35809043CE"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}