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CVE-2026-93518

An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by…

Risk score
47/100
CVSS
7.8 v3.1
Published
28 Oct 2026

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What to know

What it is
An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.
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 7.8 high

References

Original description

An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.

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