What is CVE-2026-23387?

CVE-2026-23387 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.6.118 onward and patched in 6.6.130, 6.12.77, 6.18.17 and others. CVE-2026-23387 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23387?

CVE-2026-23387 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-23387?

Yes, CVE-2026-23387 has been patched. Fixed versions include 6.6.130, 6.12.77, 6.18.17 and others. If you are running Linux kernel 6.6.118 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23387 actively exploited?

CVE-2026-23387 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23387

High

In the Linux kernel, the following vulnerability has been resolved: pinctrl: cirrus: cs42l43: Fix double-put in cs42l43_pin_probe() devm_add_action_or_reset() already invokes the action on failure, so the explicit put causes a double-put.

Package Linux Kernel

Published 2026-03-25

Last modified 2026-04-24

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-415

CVE-2026-23387 is classified as CWE-415

See CWE-415 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.6.118, 6.12.60, 6.17.10, 6.18 and later are affected. Fixed in 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0 and their respective stable series.

Affected from

≥ 6.6.118 ≥ 6.12.60 ≥ 6.17.10 ≥ 6.18

Fixed in

✓ 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-2026-23387 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/188ba3468cb7c098c62609d82e9fc58d29ead7f4
Patch
Kernel patch commit
https://git.kernel.org/stable/c/1e0465139fd9caee7ffefe285ef7d5f21919e474
Patch
Kernel patch commit
https://git.kernel.org/stable/c/95b14ecc56881dd9a187e1e84dd0daa88ff22c5d
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2026-23387

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-03-25

Modified 2026-04-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23387?

CVE-2026-23387 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.6.118 onward and has been patched in 6.6.130, 6.12.77, 6.18.17 and others. CVE-2026-23387 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23387?

CVE-2026-23387 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-23387?

Yes — CVE-2026-23387 has been patched. Fixed versions include 6.6.130, 6.12.77, 6.18.17 and others. If you are running Linux kernel 6.6.118 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23387 actively exploited?

No — CVE-2026-23387 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.