nfs-utils on Linux rpc.mountd Daemon incorrect execution-assigned permissions

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in nfs-utils on Linux. The affected element is an unknown function of the component rpc.mountd Daemon. This manipulation causes incorrect execution-assigned permissions. The identification of this vulnerability is CVE-2025-12801. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in nfs-utils on Linux (version now known). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component rpc.mountd Daemon. The manipulation with an unknown input leads to a incorrect execution-assigned permissions vulnerability. The CWE definition for the vulnerability is CWE-279. While it is executing, the product sets the permissions of an object in a way that violates the intended permissions that have been specified by the user. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2025-12801 since 11/06/2025. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 301176 (RHEL 8 : nfs-utils (RHSA-2026:3938)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (301176) and CERT Bund (WID-SEC-2026-0615). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Oracle Linux
  • RESF Rocky Linux
  • Red Hat Enterprise Linux

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (redhat): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incorrect execution-assigned permissions
CWE: CWE-279 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 301176
Nessus Name: RHEL 8 : nfs-utils (RHSA-2026:3938)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/06/2025 CVE reserved
03/04/2026 +118 days Advisory disclosed
03/04/2026 +0 days VulDB entry created
03/11/2026 +7 days VulDB entry last update

Sourcesinfo

Advisory: access.redhat.com
Status: Not defined

CVE: CVE-2025-12801 (🔒)
GCVE (CVE): GCVE-0-2025-12801
GCVE (VulDB): GCVE-100-348739
CERT Bund: WID-SEC-2026-0615 - Red Hat Enterprise Linux (nfs-utils): Schwachstelle ermöglicht Offenlegung von Informationen

Entryinfo

Created: 03/04/2026 17:46
Updated: 03/11/2026 03:22
Changes: 03/04/2026 17:46 (60), 03/07/2026 01:55 (2), 03/08/2026 17:22 (7), 03/10/2026 15:59 (1), 03/11/2026 03:22 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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