CVE-2012-0355: Cisco 5500 Series Adaptive Security Appliance

High severity, CVSS 7.8. EPSS: 2.7% chance of exploitation in the next 30 days.

Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 8.4 before 8.4(2.11) and 8.5 before 8.5(1.4) allow remote attackers to cause a denial of service (device reload) via (1) IPv4 or (2) IPv6 packets that trigger syslog message 305006, aka Bug ID CSCts39634.

Affected products

• Cisco 5500 Series Adaptive Security Appliance
• Cisco Adaptive Security Appliance Software: version 8.4 only; version 8.4(1) only; version 8.4(1.11) only; version 8.4(2) only; version 8.4(2.11) only; version 8.5 only; …
• Cisco Catalyst 6500
• Cisco Catalyst 6503-E
• Cisco Catalyst 6504-E
• Cisco Catalyst 6506-E
• Cisco Catalyst 6509-E
• Cisco Catalyst 6509-Neb-A
• Cisco Catalyst 6509-V-E
• Cisco Catalyst 6513
• Cisco Catalyst 6513-E

Published 2012-03-15. Last modified 2026-06-16.