Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-days

Today is Microsoft's May 2026 Patch Tuesday, with security updates for 120 flaws and no zero-days disclosed this month.
CSOonline

Microsoft issues out-of-band patch for critical security flaw in update to ASP.NET Core

Patching is not enough: applications embedding the insecure library will need to be rebuilt, and affected tokens and cookies expired. Developers are advised to check their applications after Microsoft ...
Hosted on MSN

Microsoft issues urgent patch for critical ASP.NET Core flaw

Microsoft has released an out-of-band .NET 10.0.7 update to fix a critical ASP.NET Core Data Protection vulnerability (CVE-2026-40372) that could let unauthenticated attackers gain SYSTEM privileges ...
InfoQ

Microsoft Patches Critical ASP.NET Core Vulnerability with 9.9 Severity Score

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Dany Lepage discusses the architectural ...
Hosted on MSN

Microsoft’s March 2026 update fixes 80+ security vulnerabilities

Yesterday was Patch Tuesday for March, with Microsoft releasing security updates that addressed 84 security vulnerabilities. In addition to Windows and Office, Microsoft’s cloud services were also ...

Microsoft issues emergency update for macOS and Linux ASP.NET threat

Microsoft released an emergency patch for its ASP.NET Core to fix a high-severity vulnerability that allows unauthenticated attackers to gain SYSTEM privileges on devices that use the Web development ...