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7.5High

CVE-2026-114147ASP.NET Core Denial of Service Vulnerability

Microsoft .NET 10.0 installed on Linux; Microsoft .NET 10.0 installed on Mac OS; Microsoft .NET 10.0 installed on Windows; Microsoft .NET 11.0 installed on Linux Published: (5 days ago)

Description

Missing release of memory after effective lifetime in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Weakness (CWE): CWE-401

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
Microsoft Microsoft Visual Studio 2022 version 17.14 17.14.0 – < 17.14.45
Microsoft Microsoft Visual Studio 2026 version 18.11 18.11.0 – < 18.11.4
Microsoft Microsoft Visual Studio 2026 version 18.12 18.12.0 – < 18.12.0
Microsoft Microsoft.AspNetCore.SignalR.StackExchangeRedis NOT_YET_AVAILABLE – < 10.0.15
Microsoft .NET 10.0 installed on Linux 10.0.0 – < 10.0.15
Microsoft .NET 10.0 installed on Mac OS 10.0.0 – < 10.0.15
Microsoft .NET 10.0 installed on Windows 10.0.0 – < 10.0.15
Microsoft .NET 11.0 installed on Linux 11.0.0-preview.1 – < 11.0.0
Microsoft .NET 11.0 installed on Mac OS 11.0.0-preview.1 – < 11.0.0
Microsoft .NET 11.0 installed on Windows 11.0.0-preview.1 – < 11.0.0
Microsoft .NET 8.0 installed on Linux 8.0.0 – < 8.0.34
Microsoft .NET 8.0 installed on Mac OS 8.0.0 – < 8.0.34
Microsoft .NET 8.0 installed on Windows 8.0.0 – < 8.0.34
Microsoft .NET 9.0 installed on Linux 9.0.0 – < 9.0.23
Microsoft .NET 9.0 installed on Mac OS 9.0.0 – < 9.0.23
Microsoft .NET 9.0 installed on Windows 9.0.0 – < 9.0.23
microsoft visual studio 2022 17.14.0 – < 17.14.45

References and patches

Recent CVEs in the same product — .NET

5.3Medium
CVE-2026-120796

.NET Denial of Service Vulnerability

Microsoft .NET 11.0 installed on Linux; Microsoft .NET 11.0 installed on Mac OS; Microsoft .NET 11.0 installed on Windows; Microsoft System.Text.Json

Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.

1.2%EPSS
7.5High
CVE-2026-118749

ASP.NET Core Denial of Service Vulnerability

Microsoft .NET 11.0 installed on Linux; Microsoft .NET 11.0 installed on Mac OS; Microsoft .NET 11.0 installed on Windows; Microsoft Microsoft Visual Studio 2026 version 18.12

Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.

1.1%EPSS
7.5High
CVE-2026-118748

ASP.NET Core Denial of Service Vulnerability

Microsoft .NET 11.0 installed on Linux; Microsoft .NET 11.0 installed on Mac OS; Microsoft .NET 11.0 installed on Windows; Microsoft Microsoft Visual Studio 2026 version 18.12

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

1.1%EPSS
8.8High
CVE-2026-118745

Visual Studio Remote Code Execution Vulnerability

Microsoft .NET 10.0 installed on Windows; Microsoft .NET 11.0 installed on Windows; Microsoft .NET 8.0 installed on Windows; Microsoft .NET 9.0 installed on Windows

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

8.8High
CVE-2026-114159

Visual Studio Remote Code Execution Vulnerability

Microsoft .NET 10.0 installed on Windows; Microsoft .NET 11.0 installed on Windows; Microsoft .NET 8.0 installed on Windows; Microsoft .NET 9.0 installed on Windows

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.