CVE-2013-1145: Cisco IOS

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

Memory leak in Cisco IOS 12.2, 12.4, 15.0, and 15.1, when Zone-Based Policy Firewall SIP application layer gateway inspection is enabled, allows remote attackers to cause a denial of service (memory consumption or device reload) via malformed SIP messages, aka Bug ID CSCtl99174.

Affected products

• Cisco IOS: version 12.2 only; version 12.4 only; version 15.0 only; version 15.1 only

Published 2013-03-28. Last modified 2026-06-16.