cve-2026-45656

CVE-2026-45656 is an Important-rated Windows UEFI Secure Boot security feature bypass disclosed by Microsoft in June 2026. The vulnerability allows an authorized local attacker to weaken Secure Boot protections across supported Windows client and server releases. Discussions on WindowsForum.com highlight the operational sensitivity of patching the boot chain, noting that Secure Boot bugs require administrators to consider trust before the OS loads. The tag covers the disclosure, impact, and administrative challenges of this specific CVE, with emphasis on the broader implications for Secure Boot security in enterprise environments.