Skip to content
Fencer Vulns
medium 6.5

CVE-2025-12801 json

Nfs-utils: rpc.mountd in the nfs-utils privilege escalation

published 2026-03-04 8 mo ago modified 2026-11-05 3 d ago also EUVD-2025-208274

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 1:2.8.3-0.el10_1.3
  • Red Hat Red Hat Enterprise Linux 8 1:2.3.3-68.el8_10
  • Red Hat Red Hat Enterprise Linux 9 1:2.5.4-38.el9_7.3
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 1:2.5.4-26.el9_4.3
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 1:2.5.4-34.el9_6.3
  • Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202603231244-0
  • Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202603242359-0
  • Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202603181125-0
  • Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202603251941-0
  • Red Hat Red Hat Ceph Storage 8 1774002867
  • nfs-utils Debian 14 1:2.8.6-1

debian advisories DEBIAN-CVE-2025-12801

  • nfs-utils RHEL 10.1 1:2.8.3-0.el10_1.3
  • libnfsidmap RHEL 10.1 1:2.8.3-0.el10_1.3
  • nfs-utils-coreos RHEL 10.1 1:2.8.3-0.el10_1.3
  • nfsv4-client-utils RHEL 10.1 1:2.8.3-0.el10_1.3
  • nfs-utils RHEL 8 1:2.3.3-68.el8_10
  • libnfsidmap RHEL 8 1:2.3.3-68.el8_10
  • nfs-utils RHEL 9 1:2.5.4-38.el9_7.3
  • libnfsidmap RHEL 9 1:2.5.4-38.el9_7.3

red hat advisories RHSA-2026:3942RHSA-2026:3939RHSA-2026:3941RHSA-2026:3938RHSA-2026:3940

  • nfs-utils SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 +1 more 2.6.4-150600.28.19.1
  • libnfsidmap0 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 +1 more 0.26-150600.28.19.1

suse advisories SUSE-SU-2026:1356-1

  • nfs-utils AlmaLinux 8 1:2.3.3-68.el8_10
  • libnfsidmap AlmaLinux 8 1:2.3.3-68.el8_10
  • nfs-utils AlmaLinux 10 1:2.8.3-0.el10_1.3
  • libnfsidmap AlmaLinux 10 1:2.8.3-0.el10_1.3
  • nfs-utils-coreos AlmaLinux 10 1:2.8.3-0.el10_1.3
  • nfsv4-client-utils AlmaLinux 10 1:2.8.3-0.el10_1.3
  • nfs-utils AlmaLinux 9 1:2.5.4-38.el9_7.3
  • libnfsidmap AlmaLinux 9 1:2.5.4-38.el9_7.3

almalinux advisories ALSA-2026:3938ALSA-2026:3939ALSA-2026:3940

  • nfs-utils Rocky Linux 10 1:2.8.3-0.el10_1.3
  • nfs-utils Rocky Linux 9 1:2.5.4-38.el9_7.3
  • nfs-utils Rocky Linux 8 1:2.3.3-68.el8_10

rocky linux advisories RLSA-2026:3939RLSA-2026:3940RLSA-2026:3938

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-12801 updated cvss 6.5

nfs-utils: rpc.mountd in the nfs-utils privilege escalation

  • Red Hat Enterprise Linux 6 nfs-utils, nfs-utils-lib
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 nfs-utils, libnfsidmap
    affected: workaround, no fix available
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ceph Storage 8 rhceph 1774002867
    fixed: vendor fix RHSA-2026:5606
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libnfsidmap-devel 2.5.4-26.el9_4.3, nfs-utils-debuginfo 2.5.4-26.el9_4.3, libnfsidmap-debuginfo 2.5.4-26.el9_4.3, nfs-utils-debugsource 2.5.4-26.el9_4.3, nfs-utils-coreos-debuginfo 2.5.4-26.el9_4.3, nfsv4-client-utils-debuginfo 2.5.4-26.el9_4.3
    fixed: vendor fix RHSA-2026:3942
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libnfsidmap-devel 2.5.4-34.el9_6.3, nfs-utils-debuginfo 2.5.4-34.el9_6.3, libnfsidmap-debuginfo 2.5.4-34.el9_6.3, nfs-utils-debugsource 2.5.4-34.el9_6.3, nfs-utils-coreos-debuginfo 2.5.4-34.el9_6.3, nfsv4-client-utils-debuginfo 2.5.4-34.el9_6.3
    fixed: vendor fix RHSA-2026:3941
  • Red Hat Enterprise Linux AppStream (v. 9) nfs-utils-coreos 2.5.4-38.el9_7.3, nfsv4-client-utils 2.5.4-38.el9_7.3
    fixed: vendor fix RHSA-2026:3940
  • Red Hat Enterprise Linux AppStream (v. 10) nfs-utils-coreos 2.8.3-0.el10_1.3, nfsv4-client-utils 2.8.3-0.el10_1.3
    fixed: vendor fix RHSA-2026:3939
show 14 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) nfs-utils-coreos 2.5.4-26.el9_4.3, nfsv4-client-utils 2.5.4-26.el9_4.3
    fixed: vendor fix RHSA-2026:3942
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) nfs-utils-coreos 2.5.4-34.el9_6.3, nfsv4-client-utils 2.5.4-34.el9_6.3
    fixed: vendor fix RHSA-2026:3941
  • Red Hat Enterprise Linux BaseOS (v. 8) nfs-utils 2.3.3-68.el8_10, libnfsidmap 2.3.3-68.el8_10
    fixed: vendor fix RHSA-2026:3938
  • Red Hat Enterprise Linux BaseOS (v. 9) nfs-utils 2.5.4-38.el9_7.3, libnfsidmap 2.5.4-38.el9_7.3
    fixed: vendor fix RHSA-2026:3940
  • Red Hat Enterprise Linux BaseOS (v. 10) nfs-utils 2.8.3-0.el10_1.3, libnfsidmap 2.8.3-0.el10_1.3
    fixed: vendor fix RHSA-2026:3939
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) nfs-utils 2.5.4-26.el9_4.3, libnfsidmap 2.5.4-26.el9_4.3
    fixed: vendor fix RHSA-2026:3942
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) nfs-utils 2.5.4-34.el9_6.3, libnfsidmap 2.5.4-34.el9_6.3
    fixed: vendor fix RHSA-2026:3941
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libnfsidmap-devel 2.5.4-38.el9_7.3, nfs-utils-debuginfo 2.5.4-38.el9_7.3, libnfsidmap-debuginfo 2.5.4-38.el9_7.3, nfs-utils-debugsource 2.5.4-38.el9_7.3, nfs-utils-coreos-debuginfo 2.5.4-38.el9_7.3, nfsv4-client-utils-debuginfo 2.5.4-38.el9_7.3
    fixed: vendor fix RHSA-2026:3940
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libnfsidmap-devel 2.8.3-0.el10_1.3, nfs-utils-debuginfo 2.8.3-0.el10_1.3, libnfsidmap-debuginfo 2.8.3-0.el10_1.3, nfs-utils-debugsource 2.8.3-0.el10_1.3, nfs-utils-coreos-debuginfo 2.8.3-0.el10_1.3, nfsv4-client-utils-debuginfo 2.8.3-0.el10_1.3
    fixed: vendor fix RHSA-2026:3939
  • Red Hat Enterprise Linux CRB (v. 8) libnfsidmap-devel 2.3.3-68.el8_10, nfs-utils-debuginfo 2.3.3-68.el8_10, libnfsidmap-debuginfo 2.3.3-68.el8_10, nfs-utils-debugsource 2.3.3-68.el8_10
    fixed: vendor fix RHSA-2026:3938
  • Red Hat OpenShift Container Platform 4.16 rhcos 416.94.202603231244
    fixed: vendor fix RHSA-2026:5873
  • Red Hat OpenShift Container Platform 4.17 rhcos 417.94.202603242359
    fixed: vendor fix RHSA-2026:5867
  • Red Hat OpenShift Container Platform 4.18 rhcos 418.94.202603181125
    fixed: vendor fix RHSA-2026:5127
  • Red Hat OpenShift Container Platform 4.19 rhcos 4.19.9.6.202603251941
    fixed: vendor fix RHSA-2026:5877

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat OpenShift Container Platform 4.16
  • Red Hat Red Hat OpenShift Container Platform 4.17
  • Red Hat Red Hat OpenShift Container Platform 4.18
  • Red Hat Red Hat OpenShift Container Platform 4.19
  • Red Hat Red Hat Ceph Storage 8
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat OpenShift Container Platform 4

Classification

Weakness
  • CWE-279 Incorrect Execution-Assigned Permissions
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.