Kernel Drivers
The latest Kernel Drivers coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-26168: Windows WinSock Driver EoP Vulnerability Demands Immediate Enterprise Patching
Microsoft has disclosed CVE-2026-26168, a critical Windows Ancillary Function Driver for Winsock elevation of privilege vulnerability that requires immediate enterprise attention despite limited...
April 2026 Patch Kills Trust Loophole Exploited in BYOVD Kernel Attacks.
Microsoft will fundamentally change how Windows handles kernel driver security starting with the April 2026 Windows security update. The company is ending default trust for cross-signed kernel...
Microsoft's 2026 Kernel Trust Change: Ending Legacy Cross-Signed Driver Support in Windows
Microsoft is preparing to implement one of the most significant Windows kernel trust changes in years, scheduled for April 2026. This security hardening measure will block legacy cross-signed drivers...
CVE-2026-23672: Microsoft Patches Windows UDFS Vulnerability Granting Full System Access
On March 10, 2026, Microsoft fixed a high‑severity elevation‑of‑privilege flaw in the Windows Universal Disk Format (UDF) file system driver. Labeled CVE‑2026‑23672, the vulnerability...
CVE-2026-21241: Critical Windows AFD Kernel Vulnerability Demands Immediate Patching
Microsoft has issued an urgent security advisory for CVE-2026-21241, a critical elevation-of-privilege vulnerability in the Windows Ancillary Function Driver for WinSock (AFD, afd.sys) that could...
ReactOS at 30: The Open-Source Windows NT Clone's Journey, Current State & Future
On January 22, 2026, the ReactOS project quietly celebrated a remarkable milestone—three decades since its first commit. This open-source initiative, which began as a response to Microsoft's...
CVE-2026-20940: Critical Windows Cloud Files Driver Vulnerability Demands Immediate Patching
Microsoft has disclosed a critical elevation-of-privilege vulnerability in the Windows Cloud Files Mini Filter Driver, designated CVE-2026-20940, which could allow attackers to gain SYSTEM-level...
CVE-2026-20820: Critical Windows CLFS Driver Vulnerability Enables Local Privilege Escalation
Microsoft has disclosed a critical security vulnerability in the Windows Common Log File System (CLFS) driver that could allow attackers to gain SYSTEM-level privileges on affected systems....
Raw Accel: The Kernel-Level Mouse Acceleration Tool Gamers and Pros Need
For decades, Windows users—particularly gamers, graphic designers, and power users—have wrestled with the operating system's built-in mouse acceleration. The default implementation is often...
Keeper launches kernel memory shield against Windows in-memory credential theft
Keeper Security has launched Forcefield, a groundbreaking kernel-level memory protection technology designed specifically to combat the escalating threat of in-memory credential theft on Windows...
Windows 11 24H2 Update Blocked by Third-Party Driver Issues
Microsoft has been quietly implementing—and then reversing—a targeted compatibility block that prevented numerous Windows 11 PCs from receiving the highly anticipated 24H2 feature update due to...
CVE-2025-55336: Windows Cloud Files Driver Vulnerability Exposes Sensitive Data
Microsoft has disclosed a significant information disclosure vulnerability in the Windows Cloud Files Mini Filter Driver (cldflt.sys) that could allow authenticated local attackers to access...