Unchecked Return Value

Overview Affected versions of this package are vulnerable to Unchecked Return Value due to improper access control in the diagnostics IPC. An attacker can gain elevated privileges by exploiting a missing error check that results in incorrect access control lists being applied to shared resources...

Unchecked Input for Loop Condition

Overview Affected versions of this package are vulnerable to Unchecked Input for Loop Condition via unchecked input for the loop condition in the System.Net.WebSockets. An attacker can cause a denial of service by sending specially crafted network requests that trigger excessive resource...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via HTTP/2 request processing. An attacker can cause a denial of service by sending crafted HTTP/2 traffic that triggers an out-of-memory condition, exhausting available memory and...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via the SslStream implementation. An attacker can bypass authorization checks during TLS/SSL communication by exploiting flaws in the processing of secure connections. This may allow access to protected...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via XML encryption processing. An attacker can cause denial of service by supplying a crafted XML document that triggers excessive resource consumption or causes the application to...

Microsoft Security Advisory CVE-2026-45591 – ASP.NET Core Denial of Service Vulnerability

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core SignalR and Blazor Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A denial of service...

Symlink Attack

Overview Affected versions of this package are vulnerable to Symlink Attack via improper link resolution before file access. An attacker can modify local files by exploiting symbolic links to redirect file operations to unintended locations. Remediation Upgrade...

Infinite loop

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Infinite loop in the...

Improper Authentication

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Improper Authentication in the RefreshSignInAsyn...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow through the loading of a specially crafted file. Remediation Upgrade Microsoft.NETCore.App.Runtime.linux-musl-x64 to version 8.0.12, 9.0.1 or higher. References - GitHub Issue...

Use After Free

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Use After Free that could allow remote code...

Denial of Service (DoS)

Overview Affected versions of this package are vulnerable to Denial of Service DoS when creating HTTPS web requests while building X509 certificate chains. Details Denial of Service DoS describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users...