CVE-2026-45591HighCVSS 7.5
ASP.NET Core Denial of Service Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
🎯 Affected products13
- .NET 10.0 installed on Linux
- .NET 10.0 installed on Mac OS
- .NET 10.0 installed on Windows
- .NET 8.0 installed on Linux
- .NET 8.0 installed on Mac OS
- .NET 8.0 installed on Windows
- .NET 9.0 installed on Linux
- .NET 9.0 installed on Mac OS
- .NET 9.0 installed on Windows
- ASP.NET Core 10.0
- ASP.NET Core 8.0
- ASP.NET Core 9.0
- Microsoft Visual Studio 2026 version 18.6
✅ Remediation
KBRelease Notes (Security Update) — fixed build 18.6.3 KB5097148 (Security Update) — fixed build 10.0.9 KB5097149 (Security Update) — fixed build 8.0.28 KB5097150 (Security Update) — fixed build 9.0.17
🔗 References (9)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591
- patchhttps://my.visualstudio.com/Downloads?q=Visual Studio 2026 version 18.6
- referencehttps://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes
- patchhttps://dotnet.microsoft.com/download/dotnet/10.0
- referencehttps://support.microsoft.com/help/5097148
- patchhttps://dotnet.microsoft.com/download/dotnet/8.0
- referencehttps://support.microsoft.com/help/5097149
- patchhttps://dotnet.microsoft.com/download/dotnet/9.0
- referencehttps://support.microsoft.com/help/5097150