Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.19.307, < 4.20 |
References
- https://git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8Patch
- https://git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3fPatch
- https://git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95Patch
- https://git.kernel.org/stable/c/4b12a3cc3f075e750cc3c5e693fd25fb400af4a2Patch
- https://git.kernel.org/stable/c/68390437a998c3f2c57212b413abef5e6d657d88Patch
- https://git.kernel.org/stable/c/da107398cbd4bbdb6bffecb2ce86d5c9384f4cecPatch
- https://git.kernel.org/stable/c/f140593901724cfbd16597c3a4fcb24a58ae44b0Patch
- https://git.kernel.org/stable/c/f710691be163ae6b39e4bcab9e5be32d329f035bPatch
FAQ
What is CVE-2026-43024?
CVE-2026-43024 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 v...
How severe is CVE-2026-43024?
CVE-2026-43024 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43024?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.