cve-2026-45588

CVE-2026-45588 is an Important-rated Windows Secure Boot security feature bypass disclosed by Microsoft in June 2026. The vulnerability affects supported Windows client and server releases, including Windows 10, Windows 11, and Windows Server 2012 through 2025. It allows a local, already-authorized attacker to bypass Secure Boot protections. Microsoft has released official fixes for all affected platforms. While not considered a remote code execution emergency, the issue highlights the importance of maintaining platform trust through regular updates. Discussions on WindowsForum.com focus on understanding the technical details and applying the June 2026 patches to mitigate the risk.