The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xwayland-devel | Oct 20, 2026 | Oct 19, 2026 |
| Alpine Linux | — | Upgrade xwaylandUpgrade xorg-server | Oct 29, 2026 | Oct 28, 2026 |
| Oracle_linux | — | Upgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland | Oct 29, 2026 | Oct 28, 2026 |
| Redhat_linux | — | Upgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-develUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xephyr-debuginfoNo solution existsUpgrade xorg-x11-server-Xwayland-debugsource | Oct 13, 2026 | Oct 7, 2026 |
| Rocky_linux | — | Upgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xnest-debuginfo | Oct 22, 2026 | Oct 20, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub