CVE-2015-1454: Bluecoat Proxyclient

High severity, CVSS 7.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Blue Coat ProxyClient before 3.3.3.3 and 3.4.x before 3.4.4.10 and Unified Agent before 4.1.3.151952 does not properly validate certain certificates, which allows man-in-the-middle attackers to spoof ProxySG Client Managers, and consequently modify configurations and execute arbitrary software updates, via a crafted certificate.

Affected products

• Bluecoat Proxyclient: from 3.3, before 3.3.3.3 (fixed in 3.3.3.3); from 3.4, before 3.4.4.10 (fixed in 3.4.4.10)
• Bluecoat Unified Agent: up to and including 4.1.3

Published 2015-02-02. Last modified 2026-06-17.