Domain Overlord (CVE-2026-26119): The Silent Privilege Escalation in Windows Admin Center
IT InstaTunnel Team Published by our engineering team Domain Overlord (CVE-2026-26119): The Silent Privilege Escalation in Windows Admin Center In the world of enterprise infrastructure, the Windows Admin Center (WAC) is the crown jewel of management. It is the browser-based “one-stop-shop” where IT professionals manage servers, clusters, and hyper-converged infrastructure. However, a recently disclosed high-severity vulnerability, tracked as CVE-2026-26119, has turned this central command post into a potential backdoor for attackers. Nicknamed “Domain Overlord,” this flaw represents a classic but devastating failure in authentication logic. It allows a low-privileged user—someone who might only have helpdesk-level access—to silently escalate their permissions to match the account running the WAC application itself. In many environments, that means a direct path to Domain Admin rights. This article provides a comprehensive deep dive into the mechanics of CVE-2026-26119, the “Impr...