The SIP service in Polycom VVX 500 and 601 devices 5.8.0.12848 and earlier allow remote attackers to obtain sensitive phone configuration information by leveraging use with an on-premise installation with Skype for Business.
unified_communications_software
CVE-2018-18568
Polycom VVX 500 and 601 devices 5.8.0.12848 and earlier allows man-in-the-middle attackers to obtain sensitive credential information by leveraging failure to validate X.509 certificates when used with an on-premise installation with Skype for Business.
CVE-2019-10688
VVX products with software versions including and prior to, UCS 5.9.2 with Better Together over Ethernet Connector (BToE) application 3.9.1, use hard-coded credentials to establish connections between the host application and the device.
CVE-2019-10689
VVX products using UCS software version 5.9.2 and earlier with Better Together over Ethernet Connector (BToE) application version 3.9.1 and earlier provides insufficient authentication between the BToE application and the BToE component, resulting in leakage of sensitive information.