Microsoft

Understanding CVE-2025-55315: What CISOs, security engineers, and sysadmins should know

On October 14, 2025, Microsoft released a security update addressing CVE-2025-55315, a vulnerability in ASP.NET Core that allows HTTP request smuggling. While request smuggling is a known technique, ...
InfoWorld

How to use keyed services in ASP.NET Core

Learn how to use keyed dependency injection in ASP.NET Core to build applications that can select a specific implementation of a service at run time. Dependency injection (also known as DI) is a ...
Bleeping Computer

Microsoft fixes highest-severity ASP.NET Core flaw ever

Earlier this week, Microsoft patched a vulnerability that was flagged with the "highest ever" severity rating received by an ASP.NET Core security flaw. This HTTP request smuggling bug (CVE-2025-55315 ...
CSOonline

Critical ASP.NET core vulnerability earns Microsoft’s highest-ever severity score

The Kestrel web server flaw allows request smuggling attacks, but the actual risk depends on the application code and deployment. Microsoft has patched a critical vulnerability in ASP.NET Core that ...
SecurityWeek

‘Highest Ever’ Severity Score Assigned by Microsoft to ASP.NET Core Vulnerability

CVE-2025-55315 is an HTTP request smuggling bug leading to information leaks, file content tampering, and server crashes. Microsoft’s October Patch Tuesday updates addressed a critical-severity ...
InfoWorld

How to use CORS in ASP.NET Core minimal APIs

How to configure the CORS middleware for minimal APIs and enable secure cross-origin resource sharing in your ASP.NET Core applications. ASP.NET Core offers a simplified hosting model, called minimal ...
The Hacker News

Microsoft Identifies 3,000 Leaked ASP.NET Keys Enabling Code Injection Attacks

Microsoft is warning of an insecure practice wherein software developers are incorporating publicly disclosed ASP.NET machine keys from publicly accessible resources, thereby putting their ...
Bleeping Computer

Microsoft says attackers use exposed ASP.NET keys to deploy malware

Microsoft warns that attackers are deploying malware in ViewState code injection attacks using static ASP. NET machine keys found online. As Microsoft Threat Intelligence experts recently discovered, ...
Hacker

Your Updated Guide to Building a Multi-language Asp.Net 8 MVC Application: Forms Validation Strings

M.Sc. C.S. University of Belgrade, Serbia; MCSA – Microsoft Certified Solutions Associate (C#, ASP.NET MVC); CodeProject MVP (x2 years); C#-Corner MVP (x3 years ...
Hacker

Your Updated Guide to Building a Multi-language Asp.Net 8 MVC Application

M.Sc. C.S. University of Belgrade, Serbia; MCSA – Microsoft Certified Solutions Associate (C#, ASP.NET MVC); CodeProject MVP (x2 years); C#-Corner MVP (x3 years ...
GitHub

ASP.NET Core 2.1 becomes ASP.NET Core 2.3

This issue is a locked mirror of dotnet/aspnetcore#58598. See that issue for discussion. We'll be reshipping ASP.NET Core 2.1 as ASP.NET Core 2.3 and encourage ASP.NET Core 2.2 users to update to it.