CVE-2016-1288: Cisco Web Security Appliance

Medium severity, CVSS 5.3. EPSS: 1.7% chance of exploitation in the next 30 days.

The HTTPS Proxy feature in Cisco AsyncOS before 8.5.3-051 and 9.x before 9.0.0-485 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (service outage) by leveraging certain intranet connectivity and sending a malformed HTTPS request, aka Bug ID CSCuu24840.

Affected products

• Cisco Web Security Appliance: version 9.0.0-193 only; version 8.5.0-497 only

Published 2016-03-03. Last modified 2026-06-17.