CVE-2024-1086 — A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables compon

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

01What is this vulnerability?

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

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2024-05-30. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-01-31T13:15:10.827
• Last modified: 2026-08-07T19:59:58.823
• Added to CISA KEV: 2024-05-30

09References

• www.openwall.com — http://www.openwall.com/lists/oss-security/2024/04/10/22
• www.openwall.com — http://www.openwall.com/lists/oss-security/2024/04/10/23
• www.openwall.com — http://www.openwall.com/lists/oss-security/2024/04/14/1
• www.openwall.com — http://www.openwall.com/lists/oss-security/2024/04/15/2
• www.openwall.com — http://www.openwall.com/lists/oss-security/2024/04/17/5
• git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f3…
• github.com — https://github.com/Notselwyn/CVE-2024-1086
• kernel.dance — https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html