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CVE-2025-12801

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

Published: Mar 4, 2026Updated: Jun 30, 2026 Sources: CVE List NVDCWE-279
6.5MEDIUM
NVD MITRE
EPSS Score
0.5%
Top 62.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-279CWE-732

Affected Products

Red Hat
commercial·USaka redhat
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.4 Extended Update SupportOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.6 Extended Update SupportOn-premOS
Operating Systems / linux-distro
Red Hat OpenShift Container Platform 4.16SaaSSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift Container Platform 4.17MixedSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift Container Platform 4.18On-premSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift Container Platform 4.19MixedSaaS Service
Cloud & SaaS / container-orchestration
Red Hat Ceph Storage 8On-premDatabase
Databases / data-warehouse-analytics
linux-nfs
oss-projectaka nfs-utils
nfs-utilsOn-prem
Operating Systems / linux-distro
and 6 more affected products View all →

Exploitability

Workaround Available
Is your org exposed to CVE-2025-12801?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:3938
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3939
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3940
access.redhat.com
and 9 more references View all →

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