CVE-2016-6440: Cisco Unified Communications Manager

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

The Cisco Unified Communications Manager (CUCM) may be vulnerable to data that can be displayed inside an iframe within a web page, which in turn could lead to a clickjacking attack. More Information: CSCuz64683 CSCuz64698. Known Affected Releases: 11.0(1.10000.10), 11.5(1.10000.6), 11.5(0.99838.4). Known Fixed Releases: 11.0(1.22048.1), 11.5(0.98000.1070), 11.5(0.98000.284)11.5(0.98000.346), 11.5(0.98000.768), 11.5(1.10000.3), 11.5(1.10000.6), 11.5(2.10000.2).

Affected products

• Cisco Unified Communications Manager: version 11.5(0.99838.4) only

Published 2016-10-27. Last modified 2026-06-17.