Microsoft releases its June 2026 Patch Tuesday security updates, addressing nearly 200 reported vulnerabilities across Windows and supported Microsoft software. Multiple outlets report that the monthly update cycle includes fixes for around 200 flaws, with roughly three dozen rated “critical,” indicating the highest severity issues. The update also addresses three zero-day vulnerabilities that are disclosed publicly ahead of or at the time of release. At least some of these zero-day weaknesses have publicly available exploit information, according to reporting. One source notes that several of the fixed issues relate to Microsoft cloud solutions and do not require user action. Another outlet highlights that the update includes multiple fixes tied to Chromium vulnerabilities affecting the Microsoft Edge browser, indicating that browser-related security issues are incorporated into the broader Patch Tuesday release. Overall, the coverage characterizes this as an unusually large Patch Tuesday for June 2026, with the number of fixes described as record-setting for Microsoft’s monthly cycle.