CVE-2026-43024

MEDIUM

netfilter: nf_tables: reject immediate NF_QUEUE verdict

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (31)
Linux/Linux < 6.8
Linux/Linux 4.19.307 - 4.20
Linux/Linux 4e66422f1b56149761dc76030e6345d1cca6f869
Linux/Linux 5.10.210 - 5.10.253
Linux/Linux 5.10.253 - 5.10.*
Linux/Linux 5.15.149 - 5.15.203
Linux/Linux 5.15.203 - 5.15.*
Linux/Linux 5.4.269 - 5.5
Linux/Linux 55a60251fa50d4e68175e36666b536a602ce4f6c - 2f7f825a548be55420f0f5f716f6c27b9d312d3f
Linux/Linux 6.1.168 - 6.1.*
... and 21 more
Published May 01, 2026
Tracked Since May 01, 2026