What is CVE-2026-23144?

CVE-2026-23144 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.18 onward and patched in 6.1.162, 6.6.122, 6.12.67 and others. CVE-2026-23144 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23144?

CVE-2026-23144 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-2026-23144?

Yes, CVE-2026-23144 has been patched. Fixed versions include 6.1.162, 6.6.122, 6.12.67 and others. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23144 actively exploited?

CVE-2026-23144 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23144

Medium

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure When a context DAMON sysfs directory setup is failed after setup of attrs/ directory, subdirectories of attrs/ directory are not cleaned up. As a result, DAMON sysfs interface is nearly broken until the system reboots, and the memory for the unremoved directory is leaked. Cleanup the directories under such failures.

Package Linux Kernel

Published 2026-02-14

Last modified 2026-03-17

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 5.18 and later are affected. Fixed in 6.1.162, 6.6.122, 6.12.67, 6.18.7, 6.19 and their respective stable series.

Affected from

≥ 5.18

Fixed in

✓ 6.1.162 6.1.x ✓ 6.6.122 6.6.x ✓ 6.12.67 6.12.x ✓ 6.18.7 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2026-23144 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/43964644348f6b1add3055c4a6cae8f77d892a6e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5651c0c391c0029541794f9c4c9597faecfd401f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/78b4eb99751ebd37ceade78810bf94de80f7fb3a
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2026-23144

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-02-14

Modified 2026-03-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23144?

CVE-2026-23144 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.18 onward and has been patched in 6.1.162, 6.6.122, 6.12.67 and others. CVE-2026-23144 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23144?

CVE-2026-23144 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-2026-23144?

Yes — CVE-2026-23144 has been patched. Fixed versions include 6.1.162, 6.6.122, 6.12.67 and others. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23144 actively exploited?

No — CVE-2026-23144 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.