🛡️ CVE-2024-1086 — 500f-firmware

🟠 CVSS 7.8 — High ⚠️ Exploit Public CWE-416 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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_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 this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2024-1086 is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.

Affected software

CVE-2024-1086 is recorded against 18 packages.

  • 500f-firmware
  • a250-firmware
  • bootstrap-os
  • c250-firmware
  • debian-linux
  • enterprise-linux-desktop
  • enterprise-linux-for-ibm-z-systems
  • enterprise-linux-for-power-big-endian
  • enterprise-linux-for-power-little-endian
  • enterprise-linux-server
  • enterprise-linux-workstation
  • fedora
  • h300s-firmware
  • h410c-firmware
  • h410s-firmware
  • h500s-firmware
  • h700s-firmware
  • linux-kernel

Timeline and source

Published on 31 January 2024 and last revised on 7 August 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
git.kernel.org
github.com
kernel.dance
lists.debian.org
lists.debian.org
lists.fedoraproject.org
news.ycombinator.com
pwning.tech
security.netapp.com
www.openwall.com

CVE-2024-1086 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-416
Public Exploit ⚠️ Yes
Source NVD
Published 2024-01-31
Updated 2026-08-11
Modified 2026-08-07

Affected Packages

Software From version Fixed in
500f-firmware
a250-firmware
bootstrap-os
c250-firmware
debian-linux
enterprise-linux-desktop
enterprise-linux-for-ibm-z-systems
enterprise-linux-for-power-big-endian
enterprise-linux-for-power-little-endian
enterprise-linux-server
enterprise-linux-workstation
fedora
h300s-firmware
h410c-firmware
h410s-firmware
h500s-firmware
h700s-firmware
linux-kernel

References

Exploit, Third Party Advisory https://github.com/Notselwyn/CVE-2024-1086
Exploit, Technical Description, Third Party Advisory https://pwning.tech/nftables/
Exploit, Third Party Advisory https://github.com/Notselwyn/CVE-2024-1086
Exploit, Technical Description, Third Party Advisory https://pwning.tech/nftables/

Similar Threats

Exploit Protection

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CVE-2024-1086 carries CVSS 7.8 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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