Microsoft’s June 2026 Patch Tuesday is the largest in the program’s history at 206 CVEs, featuring two unauthenticated CVSS 9.8 RCE vulnerabilities in HTTP.sys and the Windows Kernel, and a publicly exploitable BitLocker bypass with active proof-of-concept code. Any organization running Windows in production is affected; internet-facing HTTP.sys hosts and BitLocker-protected endpoints require the most urgent attention. Source confidence for individual CVE details is medium — data was aggregated from blog-tier sources and direct MSRC/NVD verification was not confirmed at pipeline ingestion time.