X.org
CVE-2026-93518: 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 XWay
CVE-2026-93518 Oct 28, 2026 Source: Vendor
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.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-93518
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CVE-2026-93518
BR2026-0000-037829
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Credited as Anonymous working with TrendAI Zero Day Initiative