# CVE-2025-68243: linux: In the Linux kernel, the following vulnerability has been resolved:  NFS: Check the TLS certificate fields in nfs_mat...

CVE-2025-68243 is fixed in linux on 1 platform by DEBIAN-CVE-2025-68243 (version 6.17.9-1), released December 16, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-68243
- Priority: High
- CVSS: 7.0 (high)
- EPSS: 0.0008
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.17.9-1 | [DEBIAN-CVE-2025-68243](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68243.md) | Dec 16, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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