Access Restriction Bypass
Affecting system.servicemodel.duplex package, versions [4.0.0, 4.0.3), [4.3, 4.3.2), [4.4, 4.4.3), [4.5 ,4.5.2)
Affected versions of
system.servicemodel.duplex are vulnerable to Access Restriction Bypass. It does not correctly validate certificates. An attacker who successfully exploited this vulnerability could present an expired certificate when challenged.
Note: If an application does not use Windows Communication Foundation you are not affected.
system.servicemodel.duplex to version 4.0.3, 4.3.2, 4.4.3, 4.5.2 or higher.