Security Alerts
The latest Security Alerts coverage — news, analysis, and updates from the WindowsNews.AI desk.
Defender Flaw Lets Attackers Go from Guest to Admin on Macs — Update Now
Microsoft has patched a serious vulnerability in its Defender for Endpoint security software for macOS that could allow an authenticated attacker with basic user rights to seize complete control of...
Local Attacker Can Steal Personal Data via Microsoft Defender for Mac Bug — Here’s the Fix
Microsoft shipped a critical update for its Defender for Endpoint security software on macOS on July 14, 2026, patching a vulnerability that could let an attacker with low-level access to your Mac...
Microsoft’s July patch seals a silent media-codec threat on Windows — here’s how to lock it down
Microsoft pushed out its July 2026 security updates on Tuesday, and buried among the fixes is a patch for CVE-2026-50655, a heap-based buffer overflow in Windows Media Foundation that can let...
Microsoft Fixes High-Severity .NET Vulnerability—Update Your Servers Now (8.0.29, 9.0.18, 10.0.10)
Microsoft on July 14, 2026, released patches for a high-severity denial-of-service vulnerability in .NET that can be triggered remotely by any attacker with network access—no password or login...
Microsoft Patches .NET Privilege Escalation Flaw That Requires No Attacker Privileges
On July 14, 2026, Microsoft released a security update to fix CVE-2026-50650, a code injection vulnerability in .NET Framework and modern .NET releases that can allow an attacker to escalate...
Urgent .NET Patch: CVE-2026-50649 Allows Code Execution via Malicious Project Files — Update Now
Microsoft has released security patches for a high-severity vulnerability in .NET, tracked as CVE-2026-50649, that could allow attackers to execute arbitrary code on developer machines and servers....
Microsoft’s July 2026 Patches Fix a DoS Bug That Can Crash .NET Apps Without Authentication
On July 14, 2026, Microsoft released security updates patching CVE-2026-50648, a high-severity denial-of-service vulnerability in .NET and .NET Framework. A remote attacker can exploit the flaw...
Microsoft Patches AD FS Vulnerability That Freezes Federation Services with a Single Network Packet
On July 14, 2026, Microsoft released security updates that fix a high-severity denial-of-service vulnerability in Active Directory Federation Services (AD FS). Tracked as CVE-2026-50647, the flaw...
Critical .NET Updates in July 2026 Patch Tuesday: Upgrade to .NET 8.0.29 and 9.0.18 Now
On July 14, 2026, Microsoft released its monthly Patch Tuesday updates, addressing CVE-2026-50646—a high-severity vulnerability in .NET and .NET Framework that could enable an attacker to execute...
Microsoft Ships .NET Patches for Critical 8.2-Score Authorization Bypass (CVE-2026-50528) — Here’s What to Do
On July 14, 2026, Microsoft released emergency security updates for its .NET platform to close a network-exploitable authorization bypass that carries a CVSS 3.1 score of 8.2. The flaw, tracked as...
Microsoft Fixes CVE-2026-50527: A Single Network Packet Can Crash Your .NET Application
Microsoft released a security update on July 14, 2026, that patches a denial-of-service vulnerability in .NET and .NET Framework. Tracked as CVE-2026-50527, the flaw allows a remote attacker to crash...
Microsoft Patches .NET Bug That Lets Attackers Redirect File Operations with Symbolic Links
Microsoft released patches on July 14, 2026, for a high-severity vulnerability in .NET that could allow a locally authenticated attacker to manipulate file operations by exploiting symbolic links....