Executive Summary: January 2026
Microsoft's January 2026 Patch Tuesday addresses 84 vulnerabilities across the Windows ecosystem. Administrators should prioritize Windows Server and Windows 11 endpoints immediately due to active exploitation of a Win32k elevation of privilege flaw. Community reports indicate stability issues with specific printer drivers and recovery partitions.
Total CVEs
84
9 Critical Severity
Zero-Days
2
Actively Exploited
Community Alerts
High
Boot loops reported
Updates
KB5048...
Win 10 / 11 / Server
Vulnerability Analysis
Breakdown of the 84 CVEs by severity. The "Critical" slice represents RCE (Remote Code Execution) vulnerabilities that require immediate attention.
● Top Priority Risks
Click a vulnerability to view mitigation strategies.
Patch Catalog
Official Knowledge Base (KB) references for January 2026.
| OS Version | KB Article | Build Number | Key Fixes | Download |
|---|
Community Sentiment & Issues
Aggregated Data
Analysis of reports from Reddit (r/sysadmin), BornCity, Deskmodder, and Ghacks.
Key Trend: Installation failures are higher than average this month.