Use After Free in Linux Kernel

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…

Vulnerability class: Use-After-Free

EPSS: 0.853 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-1086?
CVE-2024-1086 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2024-01-31.
How severe is CVE-2024-1086?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2024-1086 known to be exploited?
Yes. CVE-2024-1086 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-05-30), indicating it is being actively exploited. 96 public proof-of-concept repositories are indexed.