CVE-2013-3461

Cisco Unified Communications Manager (Unified CM) 8.5(x) and 8.6(x) before 8.6(2a)su3 and 9.x before 9.1(1) does not properly restrict the rate of SIP packets, which allows remote attackers to cause a denial of service (memory and CPU consumption, and service disruption) via a flood of UDP packets to port 5060, aka Bug ID CSCub35869.

• CWE-399

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cucmVendor Advisory
• http://www.securitytracker.com/id/1028938Third Party Advisory, VDB Entry
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cucmVendor Advisory
• http://www.securitytracker.com/id/1028938Third Party Advisory, VDB Entry

Published

Aug 25, 2013

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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