Search Results (3 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-50259 3 Redhat, X.org, Xorg 3 Enterprise Linux, Xorg-server, Xwayland 2026-06-07 7.8 High
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CVE-2008-2361 2 Redhat, Xorg 2 Enterprise Linux, X11 2026-04-23 N/A
Integer overflow in the ProcRenderCreateCursor function in the Render extension in the X server 1.4 in X.Org X11R7.3 allows context-dependent attackers to cause a denial of service (daemon crash) via unspecified request fields that are used to calculate a glyph buffer size, which triggers a dereference of unmapped memory.
CVE-2024-21886 2 Redhat, Xorg 8 Enterprise Linux, Rhel Aus, Rhel E4s and 5 more 2026-04-15 7.8 High
A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.