CVE-2013-1193: Cisco Adaptive Security Appliance Software

Medium severity, CVSS 5.0. EPSS: 1.8% chance of exploitation in the next 30 days.

The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.

Affected products

• Cisco Adaptive Security Appliance Software: affected versions not specified
• Cisco Firewall Services Module: affected versions not specified

Published 2013-04-16. Last modified 2026-06-16.