Microsoft released patches addressing 204 vulnerabilities in June 2026, with 38 rated as critical severity. Three vulnerabilities were previously disclosed before the patch release. Six cloud-related vulnerabilities required no user action, and Edge browser received updates for 360 Chromium-related issues.

Why it matters in Western Canada: Western Canadian organizations across post-secondary, government, healthcare, and finance sectors heavily rely on Microsoft enterprise solutions and cloud services, making timely patching of critical vulnerabilities essential for security posture.

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Summary generated from the original advisory. Read the full source: sans-isc