What is CVE-2026-23014?

CVE-2026-23014 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.17.8 onward and patched in 6.18.6 and 6.19. CVE-2026-23014 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23014?

CVE-2026-23014 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-2026-23014?

Yes, CVE-2026-23014 has been patched. Fixed versions include 6.18.6 and 6.19. If you are running Linux kernel 6.17.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23014 actively exploited?

CVE-2026-23014 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23014

Medium

In the Linux kernel, the following vulnerability has been resolved: perf: Ensure swevent hrtimer is properly destroyed With the change to hrtimer_try_to_cancel() in perf_swevent_cancel_hrtimer() it appears possible for the hrtimer to still be active by the time the event gets freed. Make sure the event does a full hrtimer_cancel() on the free path by installing a perf_event::destroy handler.

Package Linux Kernel

Published 2026-01-28

Last modified 2026-04-27

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 6.17.8, 6.18 and later are affected. Fixed in 6.18.6, 6.19 and their respective stable series.

Affected from

≥ 6.17.8 ≥ 6.18

Fixed in

✓ 6.18.6 6.18.x ✓ 6.19

References

2 total

Kernel Git
https://git.kernel.org/stable/c/deee9dfb111ab00f9dfd46c0c7e36656b80f5235

Patch
Kernel Git
https://git.kernel.org/stable/c/ff5860f5088e9076ebcccf05a6ca709d5935cfa9

Patch

Details

CVE ID CVE-2026-23014

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-01-28

Modified 2026-04-27

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23014?

CVE-2026-23014 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.17.8 onward and has been patched in 6.18.6 and 6.19. CVE-2026-23014 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23014?

CVE-2026-23014 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-2026-23014?

Yes. CVE-2026-23014 has been patched. Fixed versions include 6.18.6 and 6.19. If you are running Linux kernel 6.17.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23014 actively exploited?

No. CVE-2026-23014 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.