What’s Vulnerable › Vulnerabilities

CVE-2013-1243

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-07-18 · updated 2026-06-16
• Weakness: CWE-119

Description

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: 7.1
• Cisco Asa 5585-X: all versions
• Cisco Idsm-2: all versions
• Cisco Intrusion Prevention System: through 7.1
• Cisco Ips 4345 Sensor: all versions
• Cisco Ips 4360 Sensor: all versions
• Cisco Ips 4510 Sensor: all versions
• Cisco Ips 4520 Sensor: all versions
• Cisco Ips Nme: all versions

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130717-ips
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130717-ips

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