CVE-2026-93522

X.Org Server Glamor CopyArea Heap Buffer Overflow

State
Published
Severity
7.8 High
Published
Oct 28, 2026
Updated
Oct 28, 2026
Reserved
Sep 18, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsuse

Weaknesses

Affected Products

ProductVersions
xorg-x11-serverx.org
  • before 21.1.25Affected
xwaylandx.org
  • 9 to before 24.1.14Affected

References

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