Windows Security
The latest Windows Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-20844: Critical Windows Clipboard Privilege Escalation Vulnerability Patched
Microsoft has issued a critical security patch addressing CVE-2026-20844, a Windows Clipboard Server Elevation of Privilege vulnerability that could allow attackers to gain SYSTEM-level privileges on...
CVE-2026-20840 NTFS RCE: Analyzing Microsoft's Patch Playbook and Community Response
Microsoft's recent security advisory for CVE-2026-20840 has drawn significant attention from the cybersecurity community, marking another critical vulnerability in the Windows NTFS file system stack...
CVE-2026-20827: Critical TWINUI Information Disclosure Vulnerability in Windows
Microsoft has officially documented CVE-2026-20827, a significant information disclosure vulnerability affecting the Tablet Windows User Interface (TWINUI) subsystem across multiple Windows versions....
CVE-2026-20831: Critical Windows AFD Kernel Vulnerability Threatens Local Privilege Escalation
Microsoft has disclosed a critical kernel-level elevation-of-privilege vulnerability in the Windows Ancillary Function Driver for WinSock (afd.sys), designated as CVE-2026-20831, that enables...
CVE-2026-20829: TPM Trustlet Vulnerability Exposes Windows VBS Security Gaps
A seemingly minor entry in Microsoft's Security Update Guide has sparked significant concern among security researchers and enterprise administrators, revealing a critical vulnerability in the...
RNDIS Driver CVE-2026-20828 Claim Unverified: What Windows Admins Need to Patch Now
A vulnerability identifier—CVE-2026-20828—has surfaced in online discussions claiming a flaw in Windows’ RNDIS networking driver, but as of today, no official advisory from Microsoft or major...
Windows Remote Assistance Flaw Lets Attackers Bypass Security Controls – Here’s How to Protect Your PC
Microsoft’s January 2026 security updates address a newly disclosed flaw in Windows Remote Assistance that could let an attacker already on your PC bypass built-in protections. The vulnerability,...
Microsoft Flags Critical TWINUI Flaw: Why Your Windows PC Needs an Urgent Patch
Microsoft has confirmed a serious information-disclosure vulnerability in the Windows Tablet Windows User Interface (TWINUI) subsystem, tracked as CVE-2026-20826. The flaw lets a local attacker...
Patch Now: CVE-2026-20821 Exposes Windows RPC Info to Local Attacker
Microsoft has confirmed a significant information disclosure vulnerability in the Windows Remote Procedure Call (RPC) subsystem, tracked as CVE-2026-20821, that could allow local, unauthorized actors...
CVE-2026-20817: Critical Windows Error Reporting Vulnerability Requires Immediate Patching
Microsoft has issued an urgent security advisory for CVE-2026-20817, a critical local privilege escalation vulnerability in Windows Error Reporting that 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....
CVE-2026-20815: Critical CamSvc EoP Vulnerability Analysis & Patch Guide
Microsoft's security ecosystem has been alerted to a significant elevation of privilege vulnerability in the Windows Capability Access Management Service, designated as CVE-2026-20815. This security...