CVE-2023-3610 Use-after-free in Linux kernel's netfilter: nf_tables component

What is CVE-2023-3610?

CVE-2023-3610 is a high-severity use after free vulnerability in Debian Debian Linux, published on 21 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

Flaw in the error handling of bound chains causes a use-after-free in the abort path of NFT_MSG_NEWRULE. The vulnerability requires CAP_NET_ADMIN to be triggered.

We recommend upgrading past commit 4bedf9eee016286c835e3d8fa981ddece5338795.

Weakness: CWE-416

Which versions are affected by CVE-2023-3610?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2023-3610?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2023-3610 being exploited?

There is no known exploitation of CVE-2023-3610 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-27673, BELL-CVE-2023-3610, DEBIAN-CVE-2023-3610, GHSA-gcrv-hhf7-6qvh, UBUNTU-CVE-2023-3610.