CVSS 8.5 (high) · published 2026-10-28
A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause crashes or code execution in X server context.
Weakness: CWE-122
Source: NVD CVE-2026-93517
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