Microsoft · Security update · December 9, 2025
KB5071503: December 2025 security update
KB5071503, released December 9, 2025, fixes 11 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent1 publicly disclosed
CVEs closed
11
None rated Critical
Exploited
0
None reported
Exploitation more likely
3
Vendor assessment
Highest EPSS
0.0223
82nd percentile
Priority of the 11 CVEs
Patch now 0
Urgent 3
High 6
Routine 2
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2025-62472 | Windows Remote Access Connection Manager | Elevation of Privilege | 7.8 | 0.0220 | More likely |
| Urgent | CVE-2025-62458 | Windows Win32K - GRFX | Elevation of Privilege | 7.8 | 0.0066 | More likely |
| Urgent | CVE-2025-62470 | Windows Common Log File System Driver | Elevation of Privilege | 7.8 | 0.0051 | More likely |
| High | CVE-2025-54100 | Windows PowerShell | Remote Code Execution | 7.8 | 0.0223 | DisclosedExploitation Less Likely |
| High | CVE-2025-62549 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.8 | 0.0132 | Exploitation Less Likely |
| High | CVE-2025-62455 | Windows Message Queuing | Elevation of Privilege | 7.8 | 0.0047 | Exploitation Less Likely |
| High | CVE-2025-62466 | Windows Client-Side Caching (CSC) Service | Elevation of Privilege | 7.8 | 0.0040 | Exploitation Less Likely |
| High | CVE-2025-62571 | Windows Installer | Elevation of Privilege | 7.8 | 0.0040 | Exploitation Less Likely |
| High | CVE-2025-62474 | Windows Remote Access Connection Manager | Elevation of Privilege | 7.8 | 0.0037 | Exploitation Less Likely |
| Routine | CVE-2025-62473 | Windows Routing and Remote Access Service (RRAS) | Information Disclosure | 6.5 | 0.0108 | Exploitation Less Likely |
| Routine | CVE-2025-62567 | Windows Hyper-V | Denial of Service | 5.3 | 0.0103 | Exploitation Unlikely |
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