CVE-2011-4486: Cisco Business Edition 3000

High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Cisco Unified Communications Manager (CUCM) with software 6.x and 7.x before 7.1(5b)su5, 8.0 before 8.0(3a)su3, and 8.5 and 8.6 before 8.6(2a)su1 and Cisco Business Edition 3000 with software before 8.6.3 and 5000 and 6000 with software before 8.6(2a)su1 allow remote attackers to cause a denial of service (device reload) via a crafted SCCP registration, aka Bug ID CSCtu73538.

Affected products

• Cisco Business Edition 3000
• Cisco Business Edition 3000 Software: version 8.6(1) only; version 8.6(1a) only; version 8.6(2a) only; version 8.6.2 only
• Cisco Business Edition 5000
• Cisco Business Edition 5000 Software: version 8.5 only; version 8.5(1) only; version 8.6 only; version 8.6(1) only; version 8.6(1a) only; version 8.6(2) only; …
• Cisco Business Edition 6000
• Cisco Business Edition 6000 Software: version 8.5(1) only; version 8.5(1)su1 only; version 8.5(1)su2 only; version 8.5(1)su3 only; version 8.5(1-2011o) only; version 8.6(1) only; …
• Cisco Unified Communications Manager: version 6.0 only; version 6.0(1) only; version 6.0(1a) only; version 6.0(1b) only; version 6.1(1) only; version 6.1(1a) only; …

Published 2012-03-01. Last modified 2026-06-16.