CVE-2009-1157: Cisco Adaptive Security Appliance 5500

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

Memory leak on Cisco Adaptive Security Appliances (ASA) 5500 Series and PIX Security Appliances 7.0 before 7.0(8)6, 7.1 before 7.1(2)82, 7.2 before 7.2(4)30, 8.0 before 8.0(4)28, and 8.1 before 8.1(2)19 allows remote attackers to cause a denial of service (memory consumption or device reload) via a crafted TCP packet.

Affected products

• Cisco Adaptive Security Appliance 5500: version 7.0 only; version 7.1 only; version 7.2 only; version 8.0 only; version 8.1 only
• Cisco Pix: version 7.0 only; version 7.1 only; version 7.2 only; version 8.0 only; version 8.1 only

Published 2009-04-09. Last modified 2026-06-16.