CVE-2016-1440: Cisco Web Security Appliance

Medium severity, CVSS 5.3. EPSS: 1.3% chance of exploitation in the next 30 days.

The proxy process on Cisco Web Security Appliance (WSA) devices through 9.1.0-070 allows remote attackers to cause a denial of service (CPU consumption) by establishing an FTP session and then improperly terminating the control connection after a file transfer, aka Bug ID CSCuy43468.

Affected products

• Cisco Web Security Appliance: version 5.6.0-623 only; version 6.0.0-000 only; version 7.1.0 only; version 7.1.1 only; version 7.1.2 only; version 7.1.3 only; …

Published 2016-07-02. Last modified 2026-06-17.