Xorg-x11-server — Cyber Threats, Attacks & Incidents

Overview

The entity refers to the X.Org X server component (xorg-x11-server) with xwayland integration, a platform that provides X11 support on Wayland-based systems and is often used with Tigervnc for remote desktop scenarios. Recent CVEs describe a data leak via the xfixes extension and an integer overflow in the xrecord extension, highlighting confidentiality and stability risks for environments running Xorg-x11-server-xwayland with VNC.

Related Threat Clusters

• Critical DoS Vulnerabilities in openSUSE xorg-x11-server Addressed

  On April 15, 2026, SUSE released important updates for the xorg-x11-server to address multiple denial-of-service (DoS) vulnerabilities. The vulnerabilities include CVE-2026-33999, CVE-2026-34000, CVE-2026-34001,…

  3 articles · Updated April 15, 2026
• Critical Vulnerabilities in Rocky Linux Affecting Multiple Components

  Rocky Linux has released multiple security updates addressing critical vulnerabilities across various components, including 389-ds-base, HPLIP, and dracut. The vulnerabilities include a denial-of-service (DoS) issue in…

  696 articles · Updated June 19, 2026
• Critical Vulnerabilities in Tigervnc Affect Oracle and Rocky Linux Users

  Recent updates for Tigervnc have addressed multiple critical vulnerabilities affecting Oracle Linux 9 and Rocky Linux 8. The vulnerabilities include CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, and…

  12 articles · Updated June 25, 2026
• Critical Vulnerabilities in xorg-server Affecting Slackware and SUSE Systems

  Recent updates have addressed critical vulnerabilities in xorg-server affecting Slackware and SUSE systems. The vulnerabilities include CVE-2026-55999, a heap buffer overflow due to a missing bounds check in…

  5 articles · Updated July 8, 2026
• Microsoft July 2026 Security Patches Address Critical Vulnerabilities

  On July 15, 2026, Microsoft released security patches to address multiple critical vulnerabilities across its software products. The vulnerabilities include Remote Code Execution and Elevation of Privilege issues…

  2 articles · Updated July 15, 2026
• Fedora Restic and Singularity-CE Vulnerabilities Lead to Denial of Service Risks

  Recent updates for Fedora 43 and 44 address multiple vulnerabilities in Restic and Singularity-CE, including Denial of Service (DoS) issues and unauthorized access risks. The vulnerabilities, identified as…

  20 articles · Updated June 19, 2026
• Multiple CVEs Identified in Xorg-x11-server Related to SELinux Issues

  Two vulnerabilities have been reported in the Xorg-x11-server, identified as CVE-2024-0408 and CVE-2024-0409. Both CVEs, published on January 18, 2024, affect systems utilizing SELinux, with CVE-2024-0408 involving…

  2 articles · Updated February 18, 2026
• Multiple Vulnerabilities in Xorg-x11-server-xwayland Affecting TigerVNC

  Three vulnerabilities have been identified in the Xorg-x11-server-xwayland related to TigerVNC. CVE-2025-49179 and CVE-2025-49176 involve integer overflow issues in the x record and big requests extensions,…

  3 articles · Updated December 12, 2025

Recent Intelligence Reports

• July 2026 Monthly Patch — Csa.Sg · July 15, 2026
• July 2026 Monthly Patch — Csa.Sg · July 15, 2026
• SUSE xorg-x11-server Important Heap Issues Vulnerability 2026-2789 — Linuxsecurity · July 8, 2026
• Fedora 43 tigervnc Critical Info Exposure Denial of Service 2026 — Linuxsecurity · June 27, 2026
• Oracle Linux 9 tigervnc Important Remote Access Issues ELSA-2026 — Linuxsecurity · June 26, 2026
• Rocky Linux xorg-x11-server Important Security Bug Fix RLSA-2026 — Linuxsecurity · June 19, 2026
• SUSE 15-SP7 xorg-x11-server Important Patch DoS 2026-1330 — Linuxsecurity · April 15, 2026
• openSUSE 2026 xorg-x11-server Important DoS Issues SUSE-SU-2026-1331 — Linuxsecurity · April 15, 2026

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