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Known vulnerabilities in X.org xorg-x11-server

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CVE Summary Score Published
CVE-2026-93536 X.Org Server GestureBuildSprite Use-After-Free 5.3 Medium Oct 28, 2026
CVE-2026-93524 X.Org Server XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read 6.9 Medium Oct 28, 2026
CVE-2026-93523 X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write 7.8 High Oct 28, 2026
CVE-2026-93522 X.Org Server Glamor CopyArea Heap Buffer Overflow 7.8 High Oct 28, 2026
CVE-2026-93521 A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14… 7.8 High Oct 28, 2026
CVE-2026-93520 X.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds Write 7.8 High Oct 28, 2026
CVE-2026-93519 X.Org Server XFixes Pointer Barrier Event List Buffer Overflow 7.8 High Oct 28, 2026
CVE-2026-93518 X.Org Server XKB ResizeKeyType Numeric Truncation 7.8 High Oct 28, 2026
CVE-2026-93516 .Org Server XInput Passive Grab Use-After-Free 5.5 Medium Oct 28, 2026
CVE-2026-93515 .Org Server Present Extension Use-After-Free 6.8 Medium Oct 28, 2026
CVE-2026-88812 X.Org Server XKB SetGeometry TextDoodad Double Free 7.8 High Oct 27, 2026
CVE-2026-56000 Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland… 9.0 Critical Jul 8, 2026

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