Microsoft Patch Tuesday
What Microsoft fixes on the second Tuesday of every month – straight from the official Security Update Guide: number of vulnerabilities, critical and already exploited ones (zero-days), affected products and the history of the last 24 months.
Patch Tuesday August 2025
111 of them published on Patch Tuesday (Tue, 12 Aug 2025), the rest added during the month. The month also contains 172 CVEs from other issuers that Microsoft ships in its own products (e.g. Chromium in Edge, Linux in Azure Linux) – they are not counted here. Microsoft Security Update Guide
Already exploited (zero-days)
Microsoft reports no exploited vulnerability this month.
Publicly disclosed beforehand
Critical vulnerabilities (19)
Azure OpenAI Elevation of Privilege Vulnerability
Azure · MSRC
Windows Graphics Component Remote Code Execution Vulnerability
Azure Databricks Elevation of Privilege Vulnerability
Azure · MSRC
GDI+ Remote Code Execution Vulnerability
Windows, Windows ESU (Extended Security Updates), Microsoft Office · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Azure Portal Elevation of Privilege Vulnerability
Azure · MSRC
Microsoft PC Manager Elevation of Privilege Vulnerability
Apps · MSRC
Windows NTLM Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Microsoft Office Remote Code Execution Vulnerability
Show 11 more
Microsoft Word Remote Code Execution Vulnerability
Microsoft Office · KB5002771 KB5002772 KB5002769 KB5002770 · MSRC
Microsoft Office Remote Code Execution Vulnerability
Microsoft Word Remote Code Execution Vulnerability
Microsoft Office · MSRC
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Apps · MSRC
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Azure Virtual Machines Spoofing Vulnerability
Azure · MSRC
DirectX Graphics Kernel Remote Code Execution Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063880 KB5063812 KB5063875 KB5063878 · MSRC
Azure Virtual Machines Information Disclosure Vulnerability
Azure · MSRC
Azure Stack Hub Information Disclosure Vulnerability
Azure · MSRC
Windows Hyper-V Remote Code Execution Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5065428 KB5065432 KB5065306 KB5065429 · MSRC
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Apps · MSRC
Exploitation more likely according to Microsoft
Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability
Windows ESU (Extended Security Updates), Server software (Exchange, SharePoint …) · KB5047155 KB5050672 KB5050674 KB5050673 · MSRC
Win32k Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063875 KB5063878 KB5064010 KB5063899 · MSRC
Win32k Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Windows Hyper-V Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Windows Graphics Component Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5063877 KB5063880 KB5063812 KB5063709 · MSRC
Show all 116 CVEs of this month
History of the last 24 months
- Critical
- High
- Medium
- Low
- exploited (zero-day)
Number of Microsoft CVEs per Patch Tuesday by severity; the red dot shows the number of vulnerabilities already exploited. Click a month for the details.
| Month | CVE | Critical | Exploited (zero-day) | Publicly disclosed | Highest CVSS |
|---|---|---|---|---|---|
| October 2026 | 1,475 | 94 | 1 | 1 | 10.0 |
| September 2026 | 998 | 131 | 2 | 0 | 10.0 |
| August 2026 | 457 | 84 | 1 | 3 | 10.0 |
| July 2026 | 663 | 75 | 3 | 1 | 10.0 |
| June 2026 | 220 | 49 | 0 | 4 | 10.0 |
| May 2026 | 162 | 46 | 3 | 3 | 10.0 |
| April 2026 | 181 | 23 | 2 | 1 | 10.0 |
| March 2026 | 97 | 19 | 0 | 2 | 10.0 |
| February 2026 | 61 | 7 | 6 | 3 | 9.8 |
| January 2026 | 124 | 17 | 2 | 1 | 9.9 |
| December 2025 | 65 | 8 | 1 | 2 | 10.0 |
| November 2025 | 71 | 12 | 1 | 0 | 10.0 |
| October 2025 | 180 | 18 | 2 | 1 | 10.0 |
| September 2025 | 94 | 13 | 0 | 1 | 10.0 |
| August 2025 | 116 | 19 | 0 | 1 | 10.0 |
| July 2025 | 137 | 17 | 1 | 1 | 9.9 |
| June 2025 | 72 | 13 | 1 | 1 | 9.8 |
| May 2025 | 80 | 11 | 5 | 2 | 10.0 |
| April 2025 | 132 | 17 | 1 | 0 | 9.9 |
| March 2025 | 65 | 10 | 6 | 1 | 9.3 |
| February 2025 | 66 | 6 | 3 | 2 | 9.0 |
| January 2025 | 165 | 13 | 3 | 5 | 9.9 |
| December 2024 | 75 | 19 | 1 | 1 | 9.8 |
| November 2024 | 97 | 7 | 3 | 3 | 9.9 |
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.
