CVE-2013-5544: Cisco Adaptive Security Appliance Software

Medium severity, CVSS 5.4. EPSS: 1.7% chance of exploitation in the next 30 days.

The VPN authentication functionality in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to cause a denial of service (device reload) by sending many username-from-cert IKE requests, aka Bug ID CSCua91108.

Affected products

• Cisco Adaptive Security Appliance Software: affected versions not specified

Published 2013-10-22. Last modified 2026-06-16.