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.

References (10)

Core 10

Scores

CVSS v3 5.5
EPSS 0.0013
EPSS Percentile 2.9%
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 (38)
linux/Kernel < 5.10.253linux
linux/Kernel 5.11.0 - 5.15.203linux
linux/Kernel 5.16.0 - 6.1.168linux
linux/Kernel 6.13.0 - 6.19.12linux
linux/Kernel 6.2.0 - 6.6.134linux
linux/Kernel 6.7.0 - 6.12.81linux
linux/Kernel 6.8.0 - 6.18.22linux
Linux/Linux < 6.8
Linux/Linux 4.19.307 - 4.20
Linux/Linux 4e66422f1b56149761dc76030e6345d1cca6f869
... and 28 more
Published May 01, 2026
Tracked Since May 01, 2026