CVE-2012-1326: Cisco Ironport Web Security Appliance

High severity, CVSS 7.4. EPSS: 0.7% chance of exploitation in the next 30 days.

Cisco IronPort Web Security Appliance up to and including 7.5 does not validate the basic constraints of the certificate authority which could lead to MITM attacks

Affected products

• Cisco Ironport Web Security Appliance: up to and including 7.5

Published 2020-01-15. Last modified 2026-06-16.