Avi Load Balancer EUVD-2026-45363

VMware Avi Load Balancer versions 22.1.x through 32.1.x contain a local privilege escalation vulnerability (CVE-2026-47868) enabling users with local appliance access to gain root privileges and execute arbitrary code. This directly threatens organizations relying on Avi for critical traffic management, as compromised appliances could facilitate traffic manipulation, service disruption, or lateral network movement. The absence of vendor patches currently demands immediate access restrictions to contain exposure.

Within 24 hours, audit all Avi Load Balancer instances to identify those running affected versions (22.1.x, 30.x, 31.x, 32.1.x) and document which personnel possess local administrative access. Within 7 days, enforce strict access controls limiting local console and SSH access to essential administrators only, revoke local login capabilities for unnecessary service accounts, and activate detailed audit logging for all local authentication attempts. Within 30 days, establish vendor monitoring for patch releases, evaluate upgrade pathways to unaffected version lines, and execute remediation immediately upon patch availability or plan controlled migration to newer release versions.

No vendor-released patch identified at time of analysis. Interim mitigations: (1) Implement role-based access controls restricting local administrative privileges to minimal personnel; (2) Enable multi-factor authentication for local access where appliance configuration permits; (3) Activate comprehensive audit logging capturing all local login and privilege escalation activities; (4) Deploy Avi appliances on isolated network segments with restricted connectivity; (5) Establish continuous monitoring of vendor security advisories and CISA threat alerts for patch availability; (6) Implement network controls limiting administrative interface access to authorized management systems only.