Windows Security
The latest Windows Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft Defender Web Threat Defense flaw (CVE-2025-21343) exposes Windows systems to remote data theft
A newly discovered security vulnerability, tracked as CVE-2025-21343, has been identified in Microsoft Defender's Web Threat Defense component, posing a significant information disclosure risk to...
Windows VBS Flaw CVE-2025-21340: Patch Now for Privilege Escalation Risk
Microsoft has recently disclosed a critical security vulnerability (CVE-2025-21340) affecting Virtualization-Based Security (VBS) in Windows, raising concerns among enterprise and individual users...
Microsoft Urges Immediate Patching for Critical Windows CryptoAPI Flaw CVE-2025-21336
CVE-2025-21336 Vulnerability: A Critical Threat to Windows Cryptography A newly discovered vulnerability, tracked as CVE-2025-21336, poses a severe risk to Windows systems by exploiting flaws in...
Windows Installer zero-day (CVE-2025-21331) grants SYSTEM access across all Windows 10/11 and Server builds.
CVE-2025-21331: Critical Windows Installer Vulnerability Explained Microsoft has disclosed a severe elevation of privilege vulnerability (CVE-2025-21331) in the Windows Installer service that could...
Patch Now: CVE-2025-21312 Exposes Windows Smart Card Auth Data
Windows users and IT administrators must urgently address CVE-2025-21312, a newly discovered vulnerability affecting the Windows Smart Card subsystem that could expose sensitive authentication data....
Microsoft patches CVE-2025-21310 Windows zero-day with EoP risks
Microsoft has recently disclosed CVE-2025-21310, a critical Windows vulnerability that could allow attackers to execute elevation of privilege (EoP) attacks. This security flaw, affecting multiple...
CVE-2025-21307: Critical Remote Code Execution Vulnerability Discovered in Windows RMCAST Driver
A newly discovered critical vulnerability, tracked as CVE-2025-21307, exposes Windows systems to remote code execution (RCE) attacks through a flaw in the RMCAST (Reliable Multicast Protocol) driver....
CVE-2025-21300: Critical UPnP Vulnerability in Windows - What You Need to Know
Microsoft has disclosed a critical vulnerability (CVE-2025-21300) in Windows' Universal Plug and Play (UPnP) service that could allow attackers to execute denial-of-service attacks on affected...
Microsoft warns of active attacks exploiting critical Windows Search flaw for SYSTEM access
Microsoft has issued an urgent security alert regarding CVE-2025-21292, a critical elevation of privilege vulnerability in the Windows Search service affecting all supported Windows versions. This...
New Windows flaw allows remote system crashes via malicious URLs
Microsoft has disclosed a critical denial-of-service (DoS) vulnerability (CVE-2025-21276) affecting multiple Windows versions that could allow attackers to crash systems remotely. This newly...
Patch now: CVE-2025-21275 gives SYSTEM access via Windows App Installer on all Windows 10/11.
CVE-2025-21275: Critical Elevation of Privilege Vulnerability in Windows App Package Installer Microsoft has disclosed a severe elevation of privilege vulnerability (CVE-2025-21275) affecting the...
CVE-2025-21274: Windows Event Tracing DoS Vulnerability Analysis & Mitigation
Microsoft has disclosed a significant security vulnerability in Windows Event Tracing for Windows (ETW), designated CVE-2025-21274, which could allow attackers to cause a denial-of-service (DoS)...