CVE-2015-2853: Session fixation vulnerability in the WebUI component in Blue Coat SSL Visibility Appliance SV800, SV1800,...

Security readout for executives and security teams

This flaw affects the administrative WebUI of older Blue Coat SSL Visibility appliances. If an attacker can influence a user into using a chosen session ID, they may hijack that web session. The business concern is unauthorized appliance administration, but the provided sources do not include CVSS, exploit maturity, or active exploitation evidence. Exposure is most likely where affected appliance WebUI access is reachable by untrusted users or broad internal networks. Internet-exposed management interfaces would raise urgency. Evidence is limited to the listed models and versions. Prioritize remediation for any affected appliance with broadly reachable WebUI access. If management access is tightly restricted, handle through normal vulnerability management, but do not defer indefinitely because compromise could affect a security inspection device. Mitigation focus: Upgrade affected appliances to 3.8.4 or a vendor-supported fixed release.; Check Blue Coat advisory SA96 for exact vendor remediation guidance.; Restrict WebUI access to trusted administrative networks while remediation is pending..

Prepared

Jun 13, 2026, 22:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.