Patch Forecast
Yellow warning
Plan into this sprint.

CVE-2026-93515

A use-after-free in present_clear_window_notifies() in the X.org X Server before 21.1.25 and X…

Risk score
41/100
CVSS
6.8 v4.0
Published
28 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is
A use-after-free in present_clear_window_notifies() in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context.
Affected
See advisory
Fix
Upgrade the product to 21.1.25 or 24.1.14 (whichever matches your release line), or later.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 6.8 medium

References

Original description

A use-after-free in present_clear_window_notifies() in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context.

Last activity 28 Oct 2026. Patch Forecast updates every hour.