x.org xorg-x11-server vulnerabilities, newest first
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- 7.8CVE-2026-109091
A buffer overflow in handling EDID Display-Range descriptors in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by malicious monitors to crash the x server or execute cote.
- 8.5CVE-2026-109094
A integer overflow that can lead to a buffer overrread in the XRes QueryResourceBytes Swap Path in the X.Org xwayland before 24.1.15 and X Server before 21.1.26 on 32bit systems could be used by authenticated clients to crash the X server.
- 8.5CVE-2026-109093
A stack buffer overflow in ProcXTestFakeInput DeviceValuator handling in X.Org xwayland before 24.1.15 and X server before 21.1.26 could be used by authenticated clients to crash or execute code in the X server.
- 7.8CVE-2026-109092
Incorrectly handled negative sizes when processing ProcXvShmPutImage requests in the X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by local authenticated X clients to crash the X server or execute code.
- 5.5CVE-2026-109096
Incorrect handling of negative returns from ddQueryImageAttributes() when processing XvPutImage requests in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by authenticated X clients to crash the X server.
- 6.9CVE-2026-109095
A integer overflow in glamor Xv Image Size handling in X.Org xwayland before 24.1.15 and X server before 21.1.26 could be used by authenticated clients to crash the X server or leak out data.
- 6.9CVE-2026-109904EPSS 0.2%
A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information.
- 7.8CVE-2026-109903EPSS 0.2%
A buffer overread caused by casting a negative integer to CARD32 in XvQueryImageAttributes in X.Org X Server before 21.1.26 and xwayland before 24.1.15 could be used to causes crashes by authenticated X clients.
- 5.3CVE-2026-93536EPSS 0.2%
A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially e…
- 6.9CVE-2026-93524EPSS 0.2%
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.
- 7.8CVE-2026-93523EPSS 0.2%
A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value 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…
- 7.8CVE-2026-93522EPSS 0.2%
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 c…
- 7.8CVE-2026-93521EPSS 0.2%
A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.
- 7.8CVE-2026-93520EPSS 0.2%
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execu…
- 7.8CVE-2026-93519EPSS 0.2%
A buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
- 7.8CVE-2026-93518EPSS 0.2%
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 …
- 5.5CVE-2026-93516EPSS 0.2%
A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices in X.org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X Clients to crash the X server or potentially…
- 6.8CVE-2026-93515EPSS 0.2%
A use-after-free in present_clear_window_notifies() in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context.
- 7.8CVE-2026-88812EPSS 0.2%
A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.