Microsoft's August 2026 Patch Tuesday Fixes 400 Vulnerabilities Including 3 Zero-Days

Microsoft released its August 2026 Patch Tuesday security updates, addressing 400 vulnerabilities across its products. Among these, three zero-day flaws were fixed—one actively exploited and two publicly disclosed prior to patching. The updates target various Microsoft software, though specific CVE IDs and affected components were not detailed in the report. The actively exploited zero-day poses a heightened risk, while the publicly disclosed vulnerabilities increase the likelihood of exploitation attempts. The release follows Microsoft’s monthly patch cycle, with no additional technical impacts or attack vectors described. The fixes are part of routine security maintenance for enterprise and consumer systems.