Windows Active Directory Federation Services Denial of Service Vulnerability
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.8%
exploitation probability
0.8%top 48% of all CVEs
observed exploitation
nono source reports it
Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft .NET Framework 3.5Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2Microsoft · Microsoft .NET Framework 3.5 AND 4.8Microsoft · Microsoft .NET Framework 3.5 AND 4.8.1Microsoft · Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2Microsoft · Microsoft .NET Framework 4.8Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1809Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)