Medium 5.5Published May 1, 2026

CVE-2026-43024netfilter: nf_tables: reject immediate NF_QUEUE verdict

Updated under an hour ago (Oct 27, 2026, 6:40 PM ET)

Does this affect you?

It affects Linux and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	55a60251fa50d4e68175e36666b536a602ce4f6c builds before 2f7f825a548be55420f0f5f716f6c27b9d312d3f; from 960cf4f812530f01f6acc6878ceaa5404c06af7b before f140593901724cfbd16597c3a4fcb24a58ae44b0; from 8e34430e33b8a80bc014f3efe29cac76bc30a4b4 before 68390437a998c3f2c57212b413abef5e6d657d88; 6653118b176a00915125521c6572ae8e507621db builds before 4b12a3cc3f075e750cc3c5e693fd25fb400af4a2; from f342de4e2f33e0e39165d8639387aa6c19dff660 before f710691be163ae6b39e4bcab9e5be32d329f035b; from f342de4e2f33e0e39165d8639387aa6c19dff660 before 42a47f4b1b7695026ab9bc1bb35d4622b0835c95; from f342de4e2f33e0e39165d8639387aa6c19dff660 before 17dc5d5a935c771338430cbc156a16a51cfd31e8; from f342de4e2f33e0e39165d8639387aa6c19dff660 before da107398cbd4bbdb6bffecb2ce86d5c9384f4cec; and 10 more ranges	CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.19.307 before 4.20; from 5.4.269 before 5.5; from 5.10.210 before 5.10.253; from 5.15.149 before 5.15.203; from 6.1.76 before 6.1.168; from 6.6.15 before 6.6.134; from 6.7.3 before 6.8; from 6.8.1 before 6.12.81; and 15 more ranges	NVD

References

References

https://git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3f	patch
https://git.kernel.org/stable/c/f140593901724cfbd16597c3a4fcb24a58ae44b0	patch
https://git.kernel.org/stable/c/68390437a998c3f2c57212b413abef5e6d657d88	patch
https://git.kernel.org/stable/c/4b12a3cc3f075e750cc3c5e693fd25fb400af4a2	patch
https://git.kernel.org/stable/c/f710691be163ae6b39e4bcab9e5be32d329f035b	patch
https://git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95	patch
https://git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8	patch
https://git.kernel.org/stable/c/da107398cbd4bbdb6bffecb2ce86d5c9384f4cec	patch
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
1–10 of 11

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.