Microsoft Visual Studio 2026 Version 18.11 CVEs and Security Vulnerabilities

CVE-2026-114147

ASP.NET Core Denial of Service Vulnerability

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

CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 14 more

CVE-2026-114146

ASP.NET Core Elevation of Privilege Vulnerability

Incorrect authorization in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 9 Critical EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 13 more

CVE-2026-114149

ASP.NET Core Denial of Service Vulnerability

Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 13 more

CVE-2026-114154

ASP.NET Core Denial of Service Vulnerability

Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Windows .net 8.0 Installed On Windows .net 9.0 Installed On Windows and 4 more

CVE-2026-114157

ASP.NET Core Security Feature Bypass Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Windows .net 11.0 Installed On Windows .net 8.0 Installed On Windows and 4 more

CVE-2026-114159

Visual Studio Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Windows .net 11.0 Installed On Windows .net 8.0 Installed On Windows and 3 more

CVE-2026-109476

ASP.NET Core Information Disclosure Vulnerability

Improper encoding or escaping of output in ASP.NET Core allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 12 more

CVE-2026-109478

ASP.NET Core Denial of Service Vulnerability

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

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

.net 8.0 Installed On Linux .net 8.0 Installed On Mac Os .net 8.0 Installed On Windows and 6 more

CVE-2026-118745

Visual Studio Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Windows .net 11.0 Installed On Windows .net 8.0 Installed On Windows and 3 more

CVE-2026-114158

Visual Studio Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Windows .net 11.0 Installed On Windows .net 8.0 Installed On Windows and 3 more

CVE-2026-105544

.NET Elevation of Privilege Vulnerability

Improper access control in .NET allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 14 more

CVE-2026-70175

ASP.NET Core Elevation of Privilege Vulnerability

Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 16 more

CVE-2026-70197

.NET and Visual Studio Remote Code Execution Vulnerability

Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net .net 10.0 Installed On Linux .net 10.0 Installed On Mac Os and 16 more

CVE-2026-118147

Visual Studio Spoofing Vulnerability

Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Visual Studio 2017 Version 15.9 Microsoft Visual Studio 2019 Version 16.11 Microsoft Visual Studio 2022 Version 17.14 and 2 more

CVE-2026-102870

ASP.NET Core Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

.net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows and 10 more

Search vulnerabilities

ASP.NET Core Denial of Service Vulnerability

ASP.NET Core Elevation of Privilege Vulnerability

ASP.NET Core Denial of Service Vulnerability

ASP.NET Core Denial of Service Vulnerability

ASP.NET Core Security Feature Bypass Vulnerability

Visual Studio Remote Code Execution Vulnerability

ASP.NET Core Information Disclosure Vulnerability

ASP.NET Core Denial of Service Vulnerability

Visual Studio Remote Code Execution Vulnerability

Visual Studio Remote Code Execution Vulnerability

.NET Elevation of Privilege Vulnerability

ASP.NET Core Elevation of Privilege Vulnerability

.NET and Visual Studio Remote Code Execution Vulnerability

Visual Studio Spoofing Vulnerability

ASP.NET Core Remote Code Execution Vulnerability