What is CVE-2026-23014?

CVE-2026-23014 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-01-28.

How severe is CVE-2026-23014?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Linux

CVE-2026-23014

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.

EPSS: 0.001 (1.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions eb3182ef0405ff2f6668fd3e5ff9883f60ce8801, 6.17.8, 6.19
Linux Linux_kernel — versions 6.18, 6.19

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-23014?: CVE-2026-23014 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-01-28.
How severe is CVE-2026-23014?: High severity. CVSS v3 base score is 7.8 out of 10.