What is CVE-2026-23426?

CVE-2026-23426 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.0 onward and patched in 6.1.167, 6.6.130, 6.12.77 and others. CVE-2026-23426 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23426?

CVE-2026-23426 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-2026-23426?

Yes, CVE-2026-23426 has been patched. Fixed versions include 6.1.167, 6.6.130, 6.12.77 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23426 actively exploited?

CVE-2026-23426 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23426

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/logicvc: Fix device node reference leak in logicvc_drm_config_parse() The logicvc_drm_config_parse() function calls of_get_child_by_name() to find the "layers" node but fails to release the reference, leading to a device node reference leak. Fix this by using the __free(device_node) cleanup attribute to automatic release the reference when the variable goes out of scope.

Package Linux Kernel

Published 2026-04-03

Last modified 2026-04-23

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 6.0 and later are affected. Fixed in 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0 and their respective stable series.

Affected from

≥ 6.0

Fixed in

✓ 6.1.167 6.1.x ✓ 6.6.130 6.6.x ✓ 6.12.77 6.12.x ✓ 6.18.17 6.18.x ✓ 6.19.7 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-23426 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/0bd326dffd9e103335d77d9c31275c0d5a7979eb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/78e91e49d28e05ccaa6b445bafb5e367d57c9583
Patch
Kernel patch commit
https://git.kernel.org/stable/c/871630255ecd2d9b64ad1d75a7dfc0567d7d9989
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2026-23426

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-04-03

Modified 2026-04-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23426?

CVE-2026-23426 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.0 onward and has been patched in 6.1.167, 6.6.130, 6.12.77 and others. CVE-2026-23426 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23426?

CVE-2026-23426 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-2026-23426?

Yes — CVE-2026-23426 has been patched. Fixed versions include 6.1.167, 6.6.130, 6.12.77 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23426 actively exploited?

No — CVE-2026-23426 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.