CVE-2015-4138: Blue Coat SSL Visibility Appliance SV1800 Firmware

Medium severity, CVSS 4.3. EPSS: 1.4% chance of exploitation in the next 30 days.

The WebUI component in Blue Coat SSL Visibility Appliance SV800, SV1800, SV2800, and SV3800 3.6.x through 3.8.x before 3.8.4 does not include the HTTPOnly flag in a Set-Cookie header for the administrator's cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie, a different vulnerability than CVE-2015-2855.

Affected products

• Blue Coat SSL Visibility Appliance SV1800 Firmware: up to and including 3.8.3
• Blue Coat SSL Visibility Appliance SV2800 Firmware: up to and including 3.8.3
• Blue Coat SSL Visibility Appliance SV3800 Firmware: up to and including 3.8.3
• Blue Coat SSL Visibility Appliance SV800 Firmware: up to and including 3.8.3

Published 2015-05-30. Last modified 2026-06-17.