Linux Kernel Use-After-Free Vulnerability
Linux — Kernel
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.
7.8
28.1%
Vector breakdown
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- Jan 31, 2024
- Modified
- Aug 7, 2026
- Added to KEV
- May 30, 2024
- Federal patch due
- Jun 20, 2024
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
8 foundWeaponization
Public repositories whose name or description references CVE-2024-1086, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
- Notselwyn/CVE-2024-1086★ 2458
Universal local privilege escalation Proof-of-Concept exploit for CVE-2024-1086, working on most Linux kernels between v5.14 and v6.6, including Debian, Ubuntu, and KernelCTF. The success rate is 99.4% in KernelCTF images.
updated Oct 13, 2026
- LLfam/CVE-2024-1086★ 22
updated Sep 2, 2026
- Alicey0719/docker-POC_CVE-2024-1086★ 3
updated Apr 26, 2026
- kevcooper/CVE-2024-1086-checker★ 2
updated Dec 12, 2025
- sandesh9978/cve-2024-1086-lpe★ 1
Technical analysis and proof-of-concept for CVE-2024-1086, a Linux kernel nf_tables use-after-free vulnerability leading to local privilege escalation. Includes vulnerability breakdown, affected versions, exploitation methodology, and mitigation guidance for research and educational purposes.
updated Jun 15, 2026
- dopaminauta/onetwoseven-writeup★ 1
HTB OneTwoSeven full walkthrough: deterministic creds, chroot symlink escape, rewrite-rule bypass RCE, CVE-2024-1086 to root
updated Aug 7, 2026
- JHarv613/CVE_2024_1086_vulnerability_check★ 0
CVE-2024-1086 vulnerability
updated Jun 29, 2026
- CCIEVoice2009/CVE-2024-1086★ 0
updated Apr 30, 2024
References
Frequently asked questions
What is CVE-2024-1086?
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.
How severe is CVE-2024-1086?
CVE-2024-1086 has a CVSS base score of 7.8 out of 10 (CVSS 3.1).
Is CVE-2024-1086 actively exploited in the wild?
Yes. CVE-2024-1086 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added May 30, 2024, meaning CISA has confirmed evidence of active exploitation. It is also flagged as used in ransomware campaigns.
What is the EPSS score for CVE-2024-1086?
28.1% - meaning FIRST.org's EPSS model estimates a 28.1% probability this vulnerability will be exploited in the wild within 30 days (98% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2024-1086?
We found 8 public GitHub repositories referencing CVE-2024-1086, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2024-1086?
CVE-2024-1086 is classified under CWE-416 (CWE-416 Use After Free).
Cross-checked against
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