AlmaLinux 9 : tigervnc (ALSA-2026:10739)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:10739 advisory. xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling CVE-2026-33999 xorg: xwayland: X.Org X server:...

xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of servi...

xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of servi...

xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access

A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X server, leading to an out-of-bounds memory access vulnerability. This could result in the disclosure of sensitive information or cause the server to crash,...

xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of servi...

EUVD-2026-25230

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

CVE-2026-34001 Xorg: xwayland: x.org x server: use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

SUSE-SU-2026:1335-1 Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: - CVE-2026-33999: XKB Integer Underflow in XkbSetCompatMap bsc1260922. - CVE-2026-34000: XKB Out-of-bounds Read in CheckSetGeom bsc1260923. - CVE-2026-34001: XSYNC Use-after-free in miSyncTriggerFence bsc1260924. - CVE-2026-34002: XKB...

OESA-2026-1719 ImageMagick security update

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats over 200 including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images,...

Out-of-bounds Write

Overview Magick.NET-Q8-x64 is a Magick.NET allows you can use ImageMagick without having to install ImageMagick on your server or desktop. More information about specific builds see the official docs https://github.com/dlemstra/Magick.NET/tree/main/docs Affected versions of this package are...

ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction

An out-of-bounds write of a zero byte exists in the X11 display interaction path that could lead to a crash...

GHSA-MW3M-PQR2-QV7C ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction

An out-of-bounds write of a zero byte exists in the X11 display interaction path that could lead to a crash...

OESA-2026-1590 libX11 security update

Core X11 protocol client library. Security Fixes: A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can result in dangling pointers, leading to a use-after-free condition. This can cause memory corruption or a system crash, potentiall...

MiracleLinux 4 : xorg-x11-apps-7.6-6.AXS4, xorg-x11-utils-7.5-6.AXS4, xorg-x11-server-utils-7.5-13.AXS4 (AXSA:2013-314:01)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2013-314:01 advisory. xorg-x11-apps A collection of common X Window System applications. xorg-x11-server-utils A collection of utilities used to tweak and query the runtime...

MiracleLinux 3 : xorg-x11-server-1.1.1-48.26.5.3AXS3 (AXSA:2008-80:01)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2008-80:01 advisory. X.Org is an open source implementation of the X Window System. It provides basic low-level functionality that full-fledged graphical user interfaces a...

xorg: xmayland: Use-after-free in XPresentNotify structure creation

A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an...

PT-2026-22013

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.23.0 Description FreeRDP is a free implementation of the Remote Desktop Protocol. A heap use-after-free condition exists in the clipboard channel due to improper memory management within the xf cliprdr provide data...