Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Windows, Windows ESU (Extended Security Updates) · KB5071544 KB5071546 KB5072033 KB5072014
Patch Tuesday
Patch Tuesday December 2025 – known issues, zero-days and what to do
On 9 Dec 2025 Microsoft fixed 65 vulnerabilities – critical: 8, already exploited (zero-days): 1. Known issues with the updates: none known.
65vulnerabilities
8critical
1zero-days
0known issues
What to do now
- Zero-day first: one vulnerability is already being exploited (CVE-2025-62221) – install the update as soon as possible, starting with servers and exposed systems.
- 8 critical vulnerabilities (mainly Windows, Microsoft Office, Azure) – roll out promptly after a short test.
- No issues are known so far with the updates of this month – test and roll out as usual.
Zero-days: already exploited
Critical vulnerabilities (8)
Azure Container Apps Remote Code Execution Vulnerability
Azure
Microsoft Partner Center Elevation of Privilege Vulnerability
Azure
Custom Question Answering Elevation of Privilege Vulnerability
Azure
Microsoft Office Remote Code Execution Vulnerability
Microsoft Office · KB5002819
Microsoft Office Remote Code Execution Vulnerability
Microsoft Office · KB5002819
Azure Cosmos DB Spoofing Vulnerability
Azure
Show 2 more critical vulnerabilities
Office Out-of-Box Experience Spoofing Vulnerability
Microsoft Office
Microsoft Purview eDiscovery Remote Code Execution Vulnerability
Microsoft Office
Updates (KB) of this month
KB numbers according to the Security Update Guide; known issues from our update issues – click a KB to see all its entries.
| Update | Product family | Vulnerabilities | Known issues |
|---|---|---|---|
| KB5072033 | Windows | 33 | none known |
| KB5072014 | Windows | 32 | none known |
| KB5071547 | Windows | 29 | none known |
| KB5071413 | Windows | 28 | none known |
| KB5071546 | Windows | 28 | none known |
| KB5071544 | Windows | 26 | none known |
| KB5071417 | Windows | 6 | none known |
| KB5002820 | Microsoft Office | 6 | none known |
| KB5002817 | Microsoft Office | 5 | none known |
| KB5071542 | Windows | 4 | none known |
| KB5002821 | Microsoft Office | 4 | none known |
| KB5002804 | Microsoft Office | 4 | none known |
Show 29 more updates
| Update | Product family | Vulnerabilities | Known issues |
|---|---|---|---|
| KB5002816 | Microsoft Office | 4 | none known |
| KB5002802 | Microsoft Office | 4 | none known |
| KB5002806 | Microsoft Office | 4 | none known |
| KB5002818 | Microsoft Office | 3 | none known |
| KB5002819 | Microsoft Office | 2 | none known |
| KB5071543 | Windows | 2 | none known |
| KB5071876 | Windows ESU (Extended Security Updates) | 2 | none known |
| KB5071873 | Windows ESU (Extended Security Updates) | 2 | none known |
| KB5071875 | Windows ESU (Extended Security Updates) | 2 | none known |
| KB5071874 | Windows ESU (Extended Security Updates) | 2 | none known |
| KB5066586 | Windows | 2 | none known |
| KB5066782 | Windows | 2 | none known |
| KB5066791 | Windows | 2 | none known |
| KB5066793 | Windows | 2 | none known |
| KB5066835 | Windows | 2 | none known |
| KB5066780 | Windows | 2 | none known |
| KB5071504 | Windows | 1 | none known |
| KB5071507 | Windows | 1 | none known |
| KB5071501 | Windows | 1 | none known |
| KB5002812 | Microsoft Office | 1 | none known |
| KB5002815 | Microsoft Office | 1 | none known |
| KB5068791 | Windows | 1 | none known |
| KB5068787 | Windows | 1 | none known |
| KB5068840 | Windows | 1 | none known |
| KB5068781 | Windows | 1 | none known |
| KB5068861 | Windows | 1 | none known |
| KB5068966 | Windows | 1 | none known |
| KB5074353 | Windows | 1 | none known |
| KB5074204 | Windows | 1 | none known |
Known issues with the updates
No issues are known so far with the updates of this month.
By product family
More about this month
Where the information comes from
Fixed vulnerabilities, severity, zero-days and KB numbers come from the official Microsoft Security Update Guide (MSRC); known issues, workarounds and dated changes from our update issues, each with its source. “What to do now” is derived from this data using fixed rules, without AI.
Affected? We can help.
We check whether your systems are affected, apply workarounds properly and plan for dated changes in good time.