Tigervnc — Cyber Threats, Attacks & Incidents

Related Threat Clusters

• 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
• 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-xwayland Affecting Tigervnc

  Two vulnerabilities, CVE-2025-49175 and CVE-2025-49178, have been reported in the Xorg-x11-server-xwayland component affecting Tigervnc. Both vulnerabilities were published on June 17, 2025, and involve issues related…

  3 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

• Fedora 43 tigervnc Critical Info Exposure Denial of Service 2026 — Linuxsecurity · June 27, 2026
• Oracle Linux 9 Tigervnc Important Security Advisory ELSA-2026 — Linuxsecurity · June 26, 2026
• Oracle Linux 9 tigervnc Important Remote Access Issues ELSA-2026 — Linuxsecurity · June 26, 2026
• CVE-2025-49178 Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore — Api.Msrc.Microsoft · February 18, 2026
• CVE-2025-49176 Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension — Api.Msrc.Microsoft · December 12, 2025
• CVE-2025-49177 Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: data leak in xfixes extension's xfixessetclientdisconnectmode — Api.Msrc.Microsoft · December 12, 2025
• CVE-2025-49179 Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension — Api.Msrc.Microsoft · December 12, 2025

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