What is CVE-2026-43024?

CVE-2026-43024 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.10.210 onward and patched in 5.10.253, 5.15.203, 6.1.168 and others. CVE-2026-43024 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-43024?

CVE-2026-43024 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-43024?

Yes, CVE-2026-43024 has been patched. Fixed versions include 5.10.253, 5.15.203, 6.1.168 and others. If you are running Linux kernel 5.10.210 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-43024 actively exploited?

CVE-2026-43024 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-43024

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 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.

Package Linux Kernel

Published 2026-05-01

Last modified 2026-05-08

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.10.210, 5.15.149, 6.1.76, 6.6.15, 4.19.307, 5.4.269, 6.7.3, 6.8 and later are affected. Fixed in 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0 and their respective stable series.

Affected from

≥ 5.10.210 ≥ 5.15.149 ≥ 6.1.76 ≥ 6.6.15 ≥ 4.19.307 ≥ 5.4.269 ≥ 6.7.3 ≥ 6.8

Fixed in

✓ 5.10.253 5.10.x ✓ 5.15.203 5.15.x ✓ 6.1.168 6.1.x ✓ 6.6.134 6.6.x ✓ 6.12.81 6.12.x ✓ 6.18.22 6.18.x ✓ 6.19.12 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-43024 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2026-43024

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-01

Modified 2026-05-08

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-43024?

CVE-2026-43024 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.10.210 onward and has been patched in 5.10.253, 5.15.203, 6.1.168 and others. CVE-2026-43024 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-43024?

CVE-2026-43024 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-43024?

Yes — CVE-2026-43024 has been patched. Fixed versions include 5.10.253, 5.15.203, 6.1.168 and others. If you are running Linux kernel 5.10.210 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-43024 actively exploited?

No — CVE-2026-43024 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.