CVE-2016-1466: Cisco Unified Communications Manager Im And Presence Service

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

Cisco Unified Communications Manager IM and Presence Service 9.1(1) SU6, 9.1(1) SU6a, 9.1(1) SU7, 10.5(2) SU2, 10.5(2) SU2a, 11.0(1) SU1, and 11.5(1) allows remote attackers to cause a denial of service (sipd process restart) via crafted headers in a SIP packet, aka Bug ID CSCva39072.

Affected products

• Cisco Unified Communications Manager Im And Presence Service: version 9.1(1) only; version 10.5(2) only; version 11.0(1) only; version 11.5(1) only

Published 2016-08-08. Last modified 2026-06-17.