Threat database

Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Security Fix(es): * xorg: xmayland: Use-after-free in XPresentNotify structure creation (CVE-2025-62229) * xorg: xwayland: Use-after-free in Xkb client resource removal (CVE-2025-62230) * xorg: xmayland: Value overflow in XkbSetCompatMap() (CVE-2025-62231) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Multiple security vulnerabilities have been identified in the X.Org Xwayland component used by TigerVNC, a remote display system. These include use-after-free, buffer overflow, heap overflow, out-of-bounds write, and use of uninitialized pointer issues. The vulnerabilities affect Red Hat Enterprise Linux Server 6 and its Extended Life Cycle Support Extension. Red Hat has issued a security advisory with updates to address these issues.