CVE-2025-12801

Full vulnerability record from the local CVENow database.
Description

A vulnerability was recently discovered in the rpc.mountd daemon in the nfs-utils package for Linux, that allows a NFSv3 client to escalate the privileges assigned to it in the /etc/exports file at mount time. In particular, it allows the client to access any subdirectory or subtree of an exported directory, regardless of the set file permissions, and regardless of any 'root_squash' or 'all_squash' attributes that would normally be expected to apply to that client.
Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Modified
Source identifier
[email protected]
Published
2026-03-04 16:16:23.900000
Last modified
2026-11-05 15:17:09.467000
View original CVE JSON
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  "id": "CVE-2025-12801",
  "sourceIdentifier": "[email protected]",
  "published": "2026-03-04T16:16:23.900",
  "lastModified": "2026-11-05T15:17:09.467",
  "vulnStatus": "Modified",
  "cveTags": [],
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      "value": "A vulnerability was recently discovered in the rpc.mountd daemon in the nfs-utils package for Linux, that allows a NFSv3 client to escalate the\nprivileges assigned to it in the /etc/exports file at mount time. In particular, it allows the client to access any subdirectory or subtree of an exported directory, regardless of the set file permissions, and regardless of any 'root_squash' or 'all_squash' attributes that would normally be expected to apply to that client."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad fue descubierta recientemente en el demonio rpc.mountd del paquete nfs-utils para Linux, que permite a un cliente NFSv3 escalar los privilegios asignados a él en el archivo /etc/exports en el momento del montaje. En particular, permite al cliente acceder a cualquier subdirectorio o subárbol de un directorio exportado, independientemente de los permisos de archivo establecidos, e independientemente de cualquier atributo 'root_squash' o 'all_squash' que normalmente se esperaría que se aplicaran a ese cliente."
    }
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