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Microsoft August 2026 Patch Tuesday fixes 400 flaws, 3 zero-days

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Why This Matters

Microsoft's August 2026 Patch Tuesday delivers critical security updates addressing 400 vulnerabilities, including three zero-days—one actively exploited—highlighting ongoing threats and the importance of timely patching. The use of AI-driven vulnerability detection underscores Microsoft's commitment to proactive security measures, impacting both enterprise and consumer security landscapes.

Key Takeaways

Today is Microsoft's August 2026 Patch Tuesday, and with it comes security updates for a massive 400 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities.

Patch Tuesday addresses 42 "Critical" vulnerabilities, 37 of which are remote code execution and 5 are elevation of privilege.

The approximate number of bugs in each vulnerability category is listed below:

176 Elevation of Privilege Vulnerabilities

11 Security Feature Bypass Vulnerabilities

110 Remote Code Execution Vulnerabilities

86 Information Disclosure Vulnerabilities

12 Denial of Service Vulnerabilities

21 Spoofing Vulnerabilities

When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today.

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