Affected: Microsoft .NET Framework 3.5 AND 4.7.2, Microsoft .NET Framework 3.5 AND 4.8, Microsoft .NET Framework 3.5 AND 4.8.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.8, Microsoft .NET Framework 4.8.1, Microsoft Windows 10 Version 1607, Microsoft Windows 10 Version 1809, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2012 R2 (Server Core installation) and 7 more

Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.