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X.org

CVE-2026-93522: 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

CVE-2026-93522 Oct 28, 2026 Source: Vendor

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.

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-93522
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Credited

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CVE-2026-93522 BR2026-0000-037835 unclaimed
Credited as Anonymous working with TrendAI Zero Day Initiative