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X.org

CVE-2026-93524: A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts

CVE-2026-93524 Oct 28, 2026 Source: Vendor

A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash 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-2026-93524
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Credited

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CVE-2026-93524 BR2026-0000-037919 unclaimed
Credited as WONJOON HWANG (@joon1337) working with TrendAI Zero Day Initiative