Cisco Unified Communications Manager (CUCM) 7.1(x) through 9.1(2) and the IM & Presence Service in Cisco Unified Presence Server through 9.1(2) use the same CTI and database-encryption key across different customers' installations, which makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms by leveraging knowledge of this key, aka Bug IDs CSCsc69187 and CSCui01756. NOTE: the vendor has provided a statement that the "hard-coded static encryption key is considered a hardening issue rather than a vulnerability, and as such, has a CVSS score of 0/0."

Cross-site request forgery (CSRF) vulnerability in the Unified Serviceability component in Cisco Unified Communications Manager (CUCM) allows remote attackers to hijack the authentication of arbitrary users for requests that perform Unified Serviceability actions, aka Bug ID CSCuh10298.

Cisco Unified Communications Manager (CUCM) does not properly limit the rate of authentication attempts, which allows remote attackers to cause a denial of service (application slowdown) via a series of requests, aka Bug ID CSCud39515.

The command-line interface in Cisco Unified Communications Manager (CUCM) does not properly validate input, which allows local users to read arbitrary files via unspecified vectors, aka Bug ID CSCue25770.