ROOT-OS-DEBIAN-11-CVE-2026-50264 CVE-2026-50264 in rootio-xorg-server - Patched by Root

Root has patched CVE-2026-50264 in the rootio-xorg-server package for Root:Debian:11. Multiple fixed versions available...

ROOT-OS-DEBIAN-11-CVE-2026-50256 CVE-2026-50256 in rootio-xorg-server - Patched by Root

Root has patched CVE-2026-50256 in the rootio-xorg-server package for Root:Debian:11. Multiple fixed versions available...

ROOT-OS-DEBIAN-11-CVE-2026-50257 CVE-2026-50257 in rootio-xorg-server - Patched by Root

Root has patched CVE-2026-50257 in the rootio-xorg-server package for Root:Debian:11. Multiple fixed versions available...

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...

Important: Red Hat Security Advisory: tigervnc security update

An update for tigervnc is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

Amazon Linux 2 : xorg-x11-server, --advisory ALAS2-2026-3336 (ALAS-2026-3336)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3336 advisory. A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer...

TencentOS Server 4: xorg-x11-server-Xwayland (TSSA-2026:0402)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0402 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

TencentOS Server 4: tigervnc (TSSA-2026:0412)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0412 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

TencentOS Server 4: tigervnc (TSSA-2026:0296)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0296 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

Amazon Linux 2023 : xorg-x11-server-Xwayland, xorg-x11-server-Xwayland-devel (ALAS2023-2026-1789)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1789 advisory. A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer...

RHEL 8 : tigervnc (RHSA-2026:24341)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:24341 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...

TencentOS Server 4: xorg-x11-server (TSSA-2026:0294)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0294 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

SUSE CVE-2026-50256

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias...

SUSE CVE-2026-50257

A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence. A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection...

SUSE CVE-2026-50258

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel XkbNumKbdGroups but CheckKeyTypes does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift...

SUSE CVE-2026-50262

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapp...

FreeBSD : xwayland -- Multiple vulnerabilities (36cb0ced-5e23-11f1-86a2-589cfc10a551)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 36cb0ced-5e23-11f1-86a2-589cfc10a551 advisory. X.Org project reports: Multiple issues have been found in the X server and Xwayland...

Slackware Linux 15.0 / current xorg-server Vulnerability (SSA:2026-154-04)

The version of xorg-server installed on the remote host is prior to 1.20.14 / 21.1.23 / 21.1.4 / 24.1.12. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-154-04 advisory. New xorg-server packages are available for Slackware 15.0 and -current to fix security issues...

RHEL 8 : tigervnc (RHSA-2026:23255)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:23255 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...

RHEL 9 : tigervnc (RHSA-2026:22424)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:22424 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...