Key Information Vulnerability Overview Type/Severity: Important Security Advisory Subject: Security update for xorg-x11-server, affecting Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support EXTENSION. Affected Products Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4.x86_64 Red Hat Enterprise Linux Server - AUS 8.4 x86_64 Security Fixes CVE-2025-49175: xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors CVE-2025-49176: xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension CVE-2025-49178: xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore CVE-2025-49179: xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer overflow in X Record extension CVE-2025-49180: xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in X Resize, Rotate and Reflect (RandR) Extension Solution Reference Link: How to Apply This Update Related CVEs CVE-2025-49175 CVE-2025-49176 CVE-2025-49178 CVE-2025-49179 CVE-2025-49180 References Red Hat Security Update Classifications