Microsoft · Security update · August 12, 2025
KB5063948: August 2025 security update
KB5063948, released August 12, 2025, fixes 34 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
UrgentUnsupported product
CVEs closed
34
3 rated Critical
Exploited
0
None reported
Exploitation more likely
5
Microsoft's assessment
Highest EPSS
0.5162
98th percentile
Priority of the 34 CVEs
Patch now 0
Urgent 6
High 19
Routine 9
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2025-53778 | Windows NTLM | Elevation of Privilege | 8.8 | 0.5162 | More likely |
| Urgent | CVE-2025-53766 | Windows GDI+ | Remote Code Execution | 9.8 | 0.0846 | Exploitation Less Likely |
| Urgent | CVE-2025-50177 | Windows Message Queuing | Remote Code Execution | 8.1 | 0.0461 | More likely |
| Urgent | CVE-2025-49743 | Microsoft Graphics Component | Elevation of Privilege | 6.7 | 0.0053 | More likely |
| Urgent | CVE-2025-53132 | Windows Win32K - GRFX | Elevation of Privilege | 7.8 | 0.0046 | More likely |
| Urgent | CVE-2025-53147 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.0 | 0.0045 | More likely |
| High | CVE-2025-53143 | Windows Message Queuing | Remote Code Execution | 8.8 | 0.0903 | Exploitation Less Likely |
| High | CVE-2025-53144 | Windows Message Queuing | Remote Code Execution | 8.8 | 0.0849 | Exploitation Less Likely |
| High | CVE-2025-53145 | Windows Message Queuing | Remote Code Execution | 8.8 | 0.0849 | Exploitation Less Likely |
| High | CVE-2025-53720 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0098 | Exploitation Unlikely |
| High | CVE-2025-50163 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.8 | 0.0097 | Exploitation Unlikely |
| High | CVE-2025-50160 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0093 | Exploitation Less Likely |
| High | CVE-2025-50162 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0093 | Exploitation Unlikely |
| High | CVE-2025-50164 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.0 | 0.0093 | Exploitation Unlikely |
| High | CVE-2025-53149 | Kernel Streaming WOW Thunk Service Driver | Elevation of Privilege | 7.8 | 0.0077 | Exploitation Less Likely |
| High | CVE-2025-50161 | Windows Win32K - GRFX | Elevation of Privilege | 7.3 | 0.0060 | Exploitation Less Likely |
| High | CVE-2025-50173 | Windows Installer | Elevation of Privilege | 7.8 | 0.0055 | Exploitation Less Likely |
| High | CVE-2025-53141 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.8 | 0.0044 | Exploitation Less Likely |
| High | CVE-2025-53154 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.8 | 0.0044 | Exploitation Less Likely |
| High | CVE-2025-53137 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.0 | 0.0039 | Exploitation Less Likely |
| High | CVE-2025-50158 | Windows NTFS | Information Disclosure | 7.0 | 0.0039 | Exploitation Less Likely |
| High | CVE-2025-53718 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.0 | 0.0036 | Exploitation Less Likely |
| High | CVE-2025-53140 | Kernel Transaction Manager | Elevation of Privilege | 7.0 | 0.0036 | Exploitation Less Likely |
| High | CVE-2025-53134 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.0 | 0.0032 | Exploitation Less Likely |
| High | CVE-2025-49762 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.0 | 0.0027 | Exploitation Less Likely |
Showing 1 to 25 of 34
1Next
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.