Microsoft Confirms Zero-Day Vulnerability in Windows Kernel

First seen 2 Dec 2025, 18:33 UTC • Forbes

•27

Article Content

Include sub-articles 1 / 1

Browse articles

ThreatCluster

Microsoft has identified a zero-day vulnerability in the Windows Kernel that has been exploited by attackers to gain system privileges. Users of Windows 10, 11, and Server are urged to update their systems immediately to mitigate the risk. The situation is critical as attacks are currently underway.

How this analysis works

Attack Flow

Continue Reading

Microsoft Office 0-day Vulnerability CVE-2026-21509 Exploited; Emergency Fix Released APT28 Exploits Zimbra Vulnerability in Ongoing Attacks Against Ukraine Microsoft SharePoint Attacks: Over 400 Victims Including US Agencies Russian SVR Exploits SolarWinds and Other Vulnerabilities Against U.S. Networks FortiWeb WAF Vulnerability Enables Full Admin Control Exploitation Widespread DNS Poisoning Campaign Targets Hotel Wi-Fi to Steal Credentials

Microsoft Confirms Zero-Day Vulnerability in Windows Kernel

Article Content

More articles in this cluster

Attack Flow

Defensive Countermeasures

Extracted Entities

Continue Reading