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CVE-2024-1085VulnerabilityPublished Updated

CVE-2024-1085: Linux Kernel · Use After Free

Affects Linux KernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Jan 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Linux KernelAffected
  • =5.13
Fixed in–

AI-suggested

European organizations should prioritize upgrading their Linux kernel to versions that include the fix beyond commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7. System administrators must audit their environments to identify systems running vulnerable kernel versions, particularly version 5.13, and apply patches or kernel upgrades immediately. For environments where immediate upgrades are not feasible, implementing strict access controls to limit local user privileges can reduce the risk of exploitation. Additionally, monitoring system logs and employing intrusion detection systems to detect anomalous behavior related to nf_tables or kernel memory corruption can provide early warning signs of attempted exploitation. Organizations should also review and harden their netfilter configurations to minimize exposure. Regular vulnerability scanning and compliance checks should include verification of kernel versions and patch status. Finally, maintaining an up-to-date inventory of Linux systems and ensuring rapid deployment of security updates through automated patch management tools will help mitigate this and future kernel vulnerabilities effectively.

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_setelem_catchall_deactivate() function checks whether the catch-all set element is active in the current generation instead of the next generation before freeing it, but only flags it inactive in the next generation, making it possible to free the element multiple times, leading to a double free vulnerability. We recommend upgrading past commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7.

References

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