CVE-2006-5821: Heap-based buffer overflow in the IMA_SECURE_DecryptData1 function in ImaSystem.dll for Citrix MetaFrame XP...

Security readout for executives and security teams

This is an old Citrix server vulnerability that could let a remote attacker take control of affected MetaFrame or Presentation Server systems through the IMA service. Business urgency depends on whether these legacy products still exist and whether IMA is reachable on internal or external networks. Likely exposure is limited to organizations still running legacy Citrix MetaFrame XP or Presentation Server 3.0/4.0. The source bundle does not provide CPE data, CVSS, or current internet exposure evidence, so validation must start with asset inventory and network reachability review. Prioritize quickly if any affected Citrix servers remain in production, especially if reachable beyond a tightly controlled admin network. If these products are absent, record non-exposure and monitor for legacy reintroductions during mergers, restorations, or shadow IT discoveries. Mitigation focus: Check Citrix CTX111186 and apply vendor-directed updates or workarounds.; Retire or upgrade unsupported Citrix MetaFrame and Presentation Server deployments.; Restrict network access to the IMA service to trusted management paths only..

Prepared

Jun 29, 2026, 09:26 UTC (UTC+00:00)

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