UPDATE: CVE-2026-3502 assessment (reported five days prior) documented TrueConf Client update mechanism compromise enabling arbitrary code execution. Related vulnerability CVE-2026-33825 now indicates Microsoft Defender access control deficiencies that permit local privilege escalation by authorized threat actors, potentially compounding exposure for systems relying on Defender as primary mitigation layer against TrueConf exploitation vectors. Correlation analysis suggests defenders implementing Defender-dependent security postures face elevated risk during active TrueConf compromise scenarios.