CVE-2013-1243: Cisco ASA 5500-X Series Ips Ssp Software

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

The IP stack in Cisco Intrusion Prevention System (IPS) Software in ASA 5500-X IPS-SSP software and hardware modules before 7.1(5)E4, IPS 4500 sensors before 7.1(6)E4, and IPS 4300 sensors before 7.1(5)E4 allows remote attackers to cause a denial of service (MainApp process hang) via malformed IPv4 packets, aka Bug ID CSCtx18596.

Affected products

• Cisco ASA 5500-X Series Ips Ssp Software: version 7.1 only
• Cisco ASA 5585-X: affected versions not specified
• Cisco Idsm-2: affected versions not specified
• Cisco Intrusion Prevention System: up to and including 7.1
• Cisco Ips 4345 Sensor: affected versions not specified
• Cisco Ips 4360 Sensor: affected versions not specified
• Cisco Ips 4510 Sensor: affected versions not specified
• Cisco Ips 4520 Sensor: affected versions not specified
• Cisco Ips Nme: affected versions not specified

Published 2013-07-18. Last modified 2026-06-16.