Microsoft Patch Tuesday security updates for November 2025 fixed an actively exploited Windows Kernel bug

Securityaffairs.Co •Pierluigi Paganini • November 12, 2025

Microsoft fixed over 60 flaws, including an actively exploited Windows kernel zero-day, in its latest Patch Tuesday updates. Microsoft’s Patch Tuesday security updates for November 2025 addressed 63 vulnerabilities impacting Windows and Windows Components, Office and Office Components, Microsoft Edge (Chromium-based), Azure Monitor Agent, Dynamics 365, Hyper-V, SQL Server, and the Windows Subsystem for Linux […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

FortiWeb WAF Vulnerability Enables Full Admin Control Exploitation A critical vulnerability in FortiWeb Web Application Firewall (WAF) has been actively exploited, allowing attackers to gain full administrative access to affected systems. Organizations using FortiWeb are at risk of total control being seized by malicious actors. The flaw has been confirmed to be exploited in the wild, prompting urgent attention from cybersecurity teams. 100 sources 80

Extracted Entities

Attack Types (1)

Zero-day Exploit

Platforms (7)

Azure Monitor Agent Dynamics 365 Hyper-V Office SQL Server Windows Windows Subsystem for Linux