CVE-2010-0590: Cisco Unified Communications Manager

High severity, CVSS 7.8. EPSS: 2.6% chance of exploitation in the next 30 days.

The CMSIPUtility component in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 7.x before 7.1(3a)su1 and 8.x before 8.0(1) allows remote attackers to cause a denial of service (process failure) via a malformed SIP Register message, aka Bug ID CSCtc37188.

Affected products

• Cisco Unified Communications Manager: version 7.0 only; version 7.0(1) only; version 7.0(2) only; version 7.1 only; version 8.0 only

Published 2010-03-05. Last modified 2026-06-16.