Windows Security
The latest Windows Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-20938: Critical VBS Enclave Flaw Demands Immediate Windows Patching
Microsoft has disclosed a critical security vulnerability designated CVE-2026-20938, affecting the Virtualization-Based Security (VBS) Enclave component in Windows operating systems. This flaw, rated...
Microsoft Fixes Critical VBS Enclave Bug That Gives Attackers Full System Control
Microsoft has released security updates to patch CVE-2026-20938, an elevation-of-privilege vulnerability in Windows Virtualization-Based Security enclaves that could allow an attacker with local...
Microsoft Patches SMB Server Denial-of-Service Flaw CVE-2026-20927 — File Server Outages Loom for Slow Movers
Microsoft has quietly fixed a denial-of-service vulnerability in the Windows SMB Server component, releasing a patch as part of its January 2026 security updates. The flaw, tracked as CVE-2026-20927,...
Microsoft's New NTFS RCE Flaw Puts Virtualization Hosts at Immediate Risk — Here’s the Patch Plan
Microsoft has disclosed a serious vulnerability in the Windows NTFS file system that could let attackers run malicious code on a victim’s machine simply by getting them to mount a crafted disk...
Microsoft’s January 2026 Update Fixes Explorer Vulnerability That Leaks Credentials
Microsoft’s January 2026 security release plugs a hole in Windows File Explorer that could inadvertently hand attackers the keys they need to move deeper into a network. The vulnerability, tracked...
Windows SMB Server Race Condition Bug Grants Attackers SYSTEM Privileges — Patch Now
Microsoft’s January 2026 Patch Tuesday includes a fix for CVE-2026-20921, a race condition vulnerability in the Windows SMB Server that could allow an attacker with low-level network access to...
Microsoft Confirms CVE-2026-20932 File Explorer Vulnerability—Here’s What to Do Now
Microsoft has acknowledged a new information-disclosure vulnerability in Windows File Explorer, assigning it the identifier CVE-2026-20932. The flaw, posted to the company’s official Security...
New Windows Explorer Vulnerability Leaks NTLM Credentials—Here’s How to Block It Now
Microsoft has assigned CVE-2026-20925 to a newly confirmed vulnerability that can expose Windows NTLM authentication data when users simply browse or preview a malicious file in File Explorer. The...
Microsoft Confirms Elevation-of-Privilege Flaw in Windows Management Services — Here’s Urgent Patch Guidance
Microsoft has published CVE-2026-20924, an elevation-of-privilege vulnerability in Windows Management Services, with a high-confidence severity rating. The disclosure, posted on the Microsoft...
Patch Alert: CVE-2026-20923 Exploit Grants Attackers SYSTEM Control via Windows Management Services
Microsoft’s January 2026 Patch Tuesday fixes a local elevation-of-privilege vulnerability in Windows Management Services that could hand attackers full SYSTEM control of a machine. The flaw,...
Microsoft Confirms NTFS Remote Code Execution Flaw—What Windows Users and Admins Must Do Now
Microsoft has disclosed a new remote code execution vulnerability in the Windows NTFS driver, tracked as CVE-2026-20922, and it’s one that security teams should take seriously—especially those...
CVE-2026-20921: Critical Windows SMB Server Vulnerability - Patch Now to Prevent Privilege Escalation
Microsoft has disclosed a significant security vulnerability in the Windows Server Message Block (SMB) protocol that could allow attackers to gain elevated privileges on affected systems. Designated...