CVE-2026-93519 X.Org Server XFixes Pointer Barrier Event List Buffer Overflow

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...

EUVD-2026-112123

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...

CVE-2026-93519 X.Org Server XFixes Pointer Barrier Event List Buffer Overflow

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...

CVE-2026-93519

A heap-based buffer overflow exists in the X.Org X server (before 21.1.25) and XWayland (before 24.1.14) when handling pointer barriers in the XFIXES extension . The vulnerability is caused by the server writing pointer barrier events into a fixed-size buffer without proper boundary validation. A...

Security Bulletin: Multiple vulnerabilities in IBM Observability with Instana (OnPrem)

Summary Multiple vulnerabilities were remediated in IBM Observability with Instana OnPrem build 1.0.313 Vulnerability Details CVEID:CVE-2025-49177 DESCRIPTION: A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a clie...

Azure Linux 3.0 Security Update: xorg-x11-server-Xwayland (CVE-2025-49177)

The version of xorg-x11-server-Xwayland installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-49177 advisory. - A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does n...

TencentOS Server 4: xorg-x11-server-Xwayland (TSSA-2025:0757)

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-2025:0757 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

EUVD-2025-18499

Malicious code in bioql PyPI...

RLSA-2025:9304 Important: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors CVE-2025-49175 xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests...

XFIXES Extension Confidential Data Access

The vulnerability of the XFIXES extension in the Wayland protocol for X.Org XWaylan, as well as in the X.Org Server for the X Window System, is related to the disclosure of information. Exploiting this vulnerability can allow an attacker to gain access to confidential data...

Linux Distros Unpatched Vulnerability : CVE-2025-49177

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Debian Linux - xorg-server - A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing ...

Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: data leak in xfixes extension's xfixessetclientdisconnectmode

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Amazon Linux 2023 : xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source (ALAS2023-2025-1061)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1061 advisory. A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and...

Medium: tigervnc

Issue Overview: A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash. CVE-2025-49175 A flaw was found in the Big Requests extension. The reque...

Medium: xorg-x11-server-Xwayland

Issue Overview: A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash. CVE-2025-49175 A flaw was found in the Big Requests extension. The reque...

xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Data Leak in XFIXES Extension's XFixesSetClientDisconnectMode

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests...

xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Data Leak in XFIXES Extension's XFixesSetClientDisconnectMode

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests...

SUSE CVE-2025-49177

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests...

Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: CVE-2025-49175: Out-of-bounds access in X Rendering extension Animated cursors bsc1244082. CVE-2025-49176: Integer overflow in Big Requests Extension bsc1244084. CVE-2025-49177: Data leak in XFIXES Extension 6 XFixesSetClientDisconnectMo...

CVE-2025-49177

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests...