


Perceptive Security
SOC/SIEM Consultancy

Microsoft Patch Tuesday December 2025, (Tue, Dec 9th)
Published:
9 december 2025 om 20:20:54
Alert date:
9 december 2025 om 21:00:45
Source:
isc.sans.edu
Microsoft released December 2024 Patch Tuesday addressing 57 vulnerabilities including 3 critical-rated issues. One vulnerability was already being actively exploited in the wild before patches were released. Two additional vulnerabilities were publicly disclosed prior to patch availability. The presence of actively exploited vulnerabilities makes this a high-priority security update requiring immediate attention from system administrators.
Technical details
Mitigation steps:
Affected products:
Microsoft Windows
Microsoft Office
Related links:
Related CVE's:
Related threat actors:
IOC's:
This article was created with the assistance of AI technology by Perceptive.
