# CVE-2024-1086

## Summary

- **CVE ID:** CVE-2024-1086
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-416
- **Published:** Jan 31, 2024
- **Last Modified:** Aug 7, 2026

## Description

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

The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.

We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

## Affected Products

- Linux — Kernel (3.15)

## References

- [CNA](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660)
- [CNA](https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660)
- [CNA](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LSPIOMIJYTLZB6QKPQVVAYSUETUWKPF/)
- [CNA](https://github.com/Notselwyn/CVE-2024-1086)
- [CNA](https://news.ycombinator.com/item?id=39828424)
- [CNA](https://pwning.tech/nftables/)
- [CNA](http://www.openwall.com/lists/oss-security/2024/04/15/2)
- [CNA](http://www.openwall.com/lists/oss-security/2024/04/10/23)
- [CNA](http://www.openwall.com/lists/oss-security/2024/04/10/22)
- [CNA](http://www.openwall.com/lists/oss-security/2024/04/14/1)
- [CNA](http://www.openwall.com/lists/oss-security/2024/04/17/5)
- [CNA](https://security.netapp.com/advisory/ntap-20240614-0009/)
- [CNA](https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html)
- [CNA](https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1086)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 28.06%
- **EPSS Percentile:** 98.0

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** May 30, 2024
- **Due Date:** Jun 20, 2024

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._