What is CVE-2026-59309?
VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system.
Affected product
See advisory
Remediation Steps
- Apply Broadcom security updates for VMware vCenter, ESX, Workstation, and Fusion
- Review vCenter access logs for unauthorized authentication bypasses or administrative actions
- Restrict network access to vCenter management interface to trusted administrative networks
- Enable enhanced logging and monitoring for vCenter authentication events
- Rotate vCenter administrative credentials after patching
References
Referenced in our briefings & reports
- Vulnerability Priority Report – Week 4 of July 2026 (July 27 – August 2)
Browse all tracked CVEs in the defend.network CVE database →
🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.