CVE-2020-4270: IBM QRadar 7.3.0 to 7.3.3 Patch 2 could allow a local user to gain escalated privileges due to weak file pe...

Security readout for executives and security teams

CVE-2020-4270 is a local privilege escalation flaw in IBM QRadar caused by weak file permissions. If someone can access the QRadar host locally, they may be able to gain higher privileges. This matters because QRadar often holds sensitive security telemetry and administrative capabilities. Exposure is most likely where IBM QRadar appliances or Community Edition systems run affected 7.3.x builds and allow local users, service accounts, or compromised processes to interact with host files. Prioritize remediation for production QRadar systems because compromise could undermine the security monitoring platform itself. This is high urgency if local access is available to many users or if QRadar hosts are shared, poorly segmented, or already exposed through other weaknesses. Mitigation focus: Check IBM support advisory 6189657 for the vendor-approved fixed level.; Upgrade or patch affected QRadar 7.3.x deployments following IBM guidance.; Limit local shell access to QRadar hosts until remediation is complete..

Prepared

May 23, 2026, 09:29 UTC (UTC+00:00)

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