# CVE-2023-5972: linux: A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel

CVE-2023-5972 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-5972, released November 23, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-5972
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 23, 2023

## Description

A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.5.10-1 | [DEBIAN-CVE-2023-5972](https://patchblox.com/security/data/fix/linux/debian-cve-2023-5972.md) | Nov 23, 2023 |
| Linux | linux Debian 14 | 6.5.10-1 | [DEBIAN-CVE-2023-5972](https://patchblox.com/security/data/fix/linux/debian-cve-2023-5972.md) | Nov 23, 2023 |

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Data as of 2026-11-08T00:53:09Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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