A denial of service vulnerability exists when .NET and .NET Core improperly process XML documents. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET application.
A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to a .NET (or .NET core) application.
This is an issue in the System.Security.Cryptography.Xml package, which is not shipped directly. If you use the System.Security.Cryptography.Xml package in your projects, ensure that you use version 4.4.2 or later.