CVE-2016-6426: Cisco Unified Contact Center Express

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

The j_spring_security_switch_user function in Cisco Unified Intelligence Center (CUIC) 8.5.4 through 9.1(1), as used in Unified Contact Center Express 10.0(1) through 11.0(1), allows remote attackers to create user accounts by visiting an unspecified web page, aka Bug IDs CSCuy75027 and CSCuy81653.

Affected products

• Cisco Unified Contact Center Express: version 10.0(1) only; version 10.5(1) only; version 10.6(1) only; version 11.0(1) only
• Cisco Unified Intelligence Center: version 8.5.4 only; version 9.0(2) only; version 9.1(1) only

Published 2016-10-05. Last modified 2026-06-17.