CVE-2012-0264: op5 Monitor and op5 Appliance before 5.5.0 do not properly manage session cookies, which allows remote atta...

Security readout for executives and security teams

This CVE affects older op5 Monitor and op5 Appliance releases before 5.5.0. The issue is improper session cookie management, meaning remote attackers may have been able to interfere with user sessions. The public record does not specify the exact impact, affected components, or attack method. Exposure is most likely limited to legacy op5 Monitor or op5 Appliance deployments running versions earlier than 5.5.0. Current exposure depends on whether those products remain deployed, reachable, and used for authenticated monitoring workflows. Treat this as a legacy exposure verification item, not a confirmed emergency. Prioritize it if op5 systems are internet-reachable, operationally critical, or still running before 5.5.0. Mitigation focus: Identify any op5 Monitor or op5 Appliance instances and their versions.; Upgrade affected deployments to 5.5.0 or later where applicable.; Check vendor release notes and support guidance for any additional required actions..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

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