CVE-2026-93522
HIGH
NVD
CVSS Score
7.8
Severity
HIGH
Published
Oct 28, 2026
Vendor
unknown
Description
A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context.