What is CVE-2026-43176?

CVE-2026-43176 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, affecting Linux kernel versions from 6.18 onward and patched in 6.18.16, 6.19.6 and 7.0. CVE-2026-43176 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-43176?

CVE-2026-43176 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-43176?

Yes, CVE-2026-43176 has been patched. Fixed versions include 6.18.16, 6.19.6 and 7.0. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-43176 actively exploited?

CVE-2026-43176 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-43176

High

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: pci: validate release report content before using for RTL8922DE The commit 957eda596c76 ("wifi: rtw89: pci: validate sequence number of TX release report") does validation on existing chips, which somehow a release report of SKB becomes malformed. As no clear cause found, add rules ahead for RTL8922DE to avoid crash if it happens.

Package Linux Kernel

Published 2026-05-06

Last modified 2026-05-12

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.18 and later are affected. Fixed in 6.18.16, 6.19.6, 7.0 and their respective stable series.

Affected from

≥ 6.18

Fixed in

✓ 6.18.16 6.18.x ✓ 6.19.6 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-43176 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/3e8a88b5e8b3506d9c5e031a65ba65ce9a0683a3
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5f93d611b33a05bd03d6843c8efe8cb6a1992620
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ebeaa3b24ba568ff8505165f954dba15cc53e4b3
Patch

Details

CVE ID CVE-2026-43176

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-05-06

Modified 2026-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-43176?

CVE-2026-43176 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.16, 6.19.6 and 7.0. CVE-2026-43176 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-43176?

CVE-2026-43176 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-43176?

Yes — CVE-2026-43176 has been patched. Fixed versions include 6.18.16, 6.19.6 and 7.0. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-43176 actively exploited?

No — CVE-2026-43176 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.