---
id: CVE-2025-68243
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  NFS: Check the TLS certificate fields in nfs_match_client()

  If the TLS security policy is of type RPC_XPRTSEC_TLS_X509, then the
  cert_serial and privkey_serial fields …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  NFS: Check the TLS certificate fields in nfs_match_client()

  If the TLS security policy is of type RPC_XPRTSEC_TLS_X509, then the
  cert_serial and privkey_serial fields …
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68243'
references:
  - url: 'https://git.kernel.org/stable/c/b8fa37219074811c04d4ecb742c73e2b296da6a8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fb2cba0854a7f315c8100a807a6959b99d72479e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00078
epssPercentile: 0.00118
ingestedAt: '2026-10-14T13:30:58.465Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

NFS: Check the TLS certificate fields in nfs_match_client()

If the TLS security policy is of type RPC_XPRTSEC_TLS_X509, then the
cert_serial and privkey_serial fields need to match as well since they
define the client's identity, as presented to the server.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.