CVE-2024-1086Known exploitationPublic exploit

Local privilege escalation via nf_tables double free

Published Jan 31, 2024 · Updated Aug 7, 2026

Use-after-free in the Linux kernel nf_tables component before 6.8 allows local users to escalate privileges to root. nft_verdict_init accepts a positive drop error resembling NF_ACCEPT, causing nf_hook_slow to free the same packet buffer twice. Exploitation requires low-privileged local access and a reachable nf_tables path; successful abuse grants root privileges, while the public exploit can also panic the kernel.

CVSS severity7.8
High
EPSS probability28.06%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel nf_tables component before 6.8 allows local users to escalate privileges to root. nft_verdict_init accepts a positive drop error resembling NF_ACCEPT, causing nf_hook_slow to free the same packet buffer twice. Exploitation requires low-privileged local access and a reachable nf_tables path; successful abuse grants root privileges, while the public exploit can also panic the kernel.

The record

CVE
CVE-2024-1086
Published
Jan 31, 2024
Updated
Aug 7, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, CAPEC-233, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 31, 2024CVE publishedPublication date reported by the CVE source.
  2. May 30, 2024Exploitation reportedCISA Known Exploited Vulnerabilities Catalog listing
  3. Aug 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.15 <6.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3.15 <6.8

Published CVSS scores

7.8GoogleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
CAPEC-233Privilege Escalation
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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