CVE-2026-43024 Details
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject immediate NF_QUEUE verdict nft_queue is always used from userspace nftables to deliver the NF_QUEUE verdict. Immediately emitting an NF_QUEUE verdict is never used by the userspace nft tools, so reject immediate NF_QUEUE verdicts. The arp family does not provide queue support, but such an immediate verdict is still reachable. Globally reject NF_QUEUE immediate verdicts to address this issue.
A vulnerability in the Linux kernel's netfilter component, specifically within the nf_tables subsystem, has been addressed. This issue involved the improper handling of immediate NF_QUEUE verdicts, which are not utilized by user-space nftables tools. However, such verdicts could still be triggered, particularly within the arp family that lacks queue support. The vulnerability has been resolved by globally rejecting immediate NF_QUEUE verdicts.
Users can update to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched version are available on the Linux kernel official website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.19.307, < 4.20 >= 5.4.269, < 5.5 >= 5.10.210, < 5.10.253 >= 5.15.149, < 5.15.203 >= 6.1.76, < 6.1.168 >= 6.6.15, < 6.6.134 >= 6.7.3, < 6.8 >= 6.8.1, < 6.12.81 >= 6.13, < 6.18.22 >= 6.19, < 6.19.12 6.8 - 6.8 rc2 6.8 rc3 6.8 rc4 6.8 rc5 6.8 rc6 6.8 rc7 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | siemens-SADP |
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 8, 2026 | Initial Analysis | [email protected] |
| May 1, 2026 | New CVE Received | kernel.org |