Linux Kernel up to 6.12.62/6.17.12/6.18.1 NFS privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.12.62/6.17.12/6.18.1 and classified as critical. Impacted is an unknown function of the component NFS. Performing a manipulation results in an unknown weakness. This vulnerability is identified as CVE-2025-68764. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.62/6.17.12/6.18.1. It has been classified as critical. This affects an unknown part of the component NFS. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags When a filesystem is being automounted, it needs to preserve the user-set superblock mount options, such as the "ro" flag.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-68764 since 12/24/2025. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/12/2026).

The vulnerability scanner Nessus provides a plugin with the ID 281755 (Linux Distros Unpatched Vulnerability : CVE-2025-68764), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.63, 6.17.13, 6.18.2 or 6.19-rc1 eliminates this vulnerability. Applying the patch 612cc98698d667df804792f0c47d4e501e66da29/4b296944e632cf4c6a4cc8e2585c6451eae47b1b/df9b003a2ecacc7218486fbb31fe008c93097d5f/8675c69816e4276b979ff475ee5fac4688f80125 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (281755), EUVD (EUVD-2026-0888) and CERT Bund (WID-SEC-2026-0009). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Microsoft Azure Linux
  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 281755
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68764

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.63/6.17.13/6.18.2/6.19-rc1
Patch: 612cc98698d667df804792f0c47d4e501e66da29/4b296944e632cf4c6a4cc8e2585c6451eae47b1b/df9b003a2ecacc7218486fbb31fe008c93097d5f/8675c69816e4276b979ff475ee5fac4688f80125

Timelineinfo

12/24/2025 CVE reserved
01/05/2026 +12 days Advisory disclosed
01/05/2026 +0 days VulDB entry created
01/12/2026 +7 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68764 (🔒)
GCVE (CVE): GCVE-0-2025-68764
GCVE (VulDB): GCVE-100-339531
EUVD: 🔒
CERT Bund: WID-SEC-2026-0009 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 01/05/2026 11:13
Updated: 01/12/2026 03:54
Changes: 01/05/2026 11:13 (57), 01/06/2026 05:12 (2), 01/06/2026 08:54 (7), 01/08/2026 18:00 (1), 01/12/2026 03:54 (1)
Complete: 🔍
Cache ID: 216::103

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

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