Microsoft June 2026 Patch Tuesday Fixes 206 Flaws and 3 Zero-Days

Microsoft released security updates for a record 206 vulnerabilities, including three critical zero-days and severe 9.8 CVSS flaws affecting kernel, network, and HTTP.sys. Out of the total, 39 are rated Critical and 167 are Important. The fixes address 63 privilege escalation, 56 remote code execution, 30 information disclosure, 27 spoofing, and 20 security feature bypass bugs. Three of these flaws were publicly disclosed at the time of the release to protect the software portfolio.