Microsoft’s January 2025 Patch Tuesday Fixes Active Zero-Day Exploits

Microsoft’s January 2025 Patch Tuesday addressed 162 vulnerabilities, including 12 critical, 149 important, and 1 moderate. It resolved three actively exploited zero-day vulnerabilities (CVE-2025-21333, CVE-2025-21334, CVE-2025-21335) and five publicly disclosed ones, alongside 16 non-Microsoft vulnerabilities. Key fixes targeted Remote Code Execution and Elevation of Privilege issues in products like Windows, Office, and Edge. Users are urged to apply updates promptly to mitigate exploitation risks.