In BIG-IP Versions 17.0.x before 17.0.0.1, 16.1.x before 16.1.3.1, 15.1.x before 15.1.6.1, 14.1.x before 14.1.5.1, and all versions of 13.1.x, when an LTM monitor or APM SSO is configured on a virtual server, and NTLM challenge-response is in use, undisclosed traffic can cause a buffer over-read. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.