Security News > 2021 > July > Microsoft July 2021 Patch Tuesday fixes 9 zero-days, 117 flaws
Today is Microsoft's July 2021 Patch Tuesday, and with it comes fixes for nine zero-day vulnerabilities and a total of 117 flaws, so Windows admins will be pulling their hair out as they scramble to get devices patched and secured.
Microsoft has fixed 117 vulnerabilities with today's update, with 13 classified as Critical, 1 Moderate, and 103 as Important.
Of the 117 vulnerabilities, 44 are remote code execution, 32 are for elevation of privilege, 14 are information disclosure, 12 are Denial of Service, 8 are security feature bypass, and seven are spoofing vulnerabilities.
July's Patch Tuesday includes nine zero-day vulnerabilities, with four actively exploited in the wild.
Microsoft's OOB patch only resolves the vulnerability if the Point and Print policy is disabled.
Below is the full list of resolved vulnerabilities and released advisories in the July 2021 Patch Tuesday updates.
News URL
Related news
- Patch Tuesday: Microsoft Fixes 134 Vulnerabilities, Including 1 Zero-Day (source)
- Microsoft May 2025 Patch Tuesday fixes 5 exploited zero-days, 72 flaws (source)
- Patch Tuesday: Microsoft fixes 5 actively exploited zero-days (source)
- Microsoft's May Patch Tuesday update fails on some Windows 11 VMs (source)
- April's Patch Tuesday leaves unlucky Windows Hello users unable to login (source)
- Emergency patch for potential SAP zero-day that could grant full system control (source)
- Microsoft pitches pay-to-patch reboot reduction subscription for Windows Server 2025 (source)
- May 2025 Patch Tuesday forecast: Panic, change, and hope (source)
- Week in review: The impact of a CVE-free future on cyber defense, Patch Tuesday forecast (source)
- Microsoft Fixes 78 Flaws, 5 Zero-Days Exploited; CVSS 10 Bug Impacts Azure DevOps Server (source)