CVE-2025-12801
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.
Does this matter?
Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-279, CWE-732
- Affected
- redhat/openshift container platform · redhat/enterprise linux · linux-nfs/nfs-utils
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:3938Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:3939Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:3940Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:3941Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:3942Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:5127
- https://access.redhat.com/errata/RHSA-2026:5606
- https://access.redhat.com/errata/RHSA-2026:5867
- https://access.redhat.com/errata/RHSA-2026:5873
- https://access.redhat.com/errata/RHSA-2026:5877
- https://access.redhat.com/security/cve/CVE-2025-12801Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2413081Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.