The provisioning manager component of Mitel MiVoice MX-ONE through 7.6 SP1 could allow an authenticated attacker to conduct an authentication bypass attack due to improper access control. A successful exploit could allow an attacker to bypass the authorization schema.

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.