VMware vCenter Server 8.0 < 8.0 U3k / 9.0.x < 9.0.2.0100 / 9.1.x < 9.1.0.0200 Authentication Bypass (VMSA-2026-0006)

The version of VMware vCenter Server installed on the remote host is 8.0 prior to 8.0 Update 3k, or 9.0.x prior to 9.0.2.0100, or 9.1.x prior to 9.1.0.0200. It is, therefore, affected by a vulnerability as referenced in the VMSA-2026-0006.1 advisory: - VMware vCenter contains an authentication...

VulnCheck KEV: 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...

CVE-2026-59309

VMware vCenter Server contains a critical authentication bypass (CVSS 9.8) in the VMware Directory Service . An unauthenticated attacker with network access to vCenter can bypass authentication and gain unauthorized access to the management plane, which provides centralized control over ESXi host...

The vulnerability of the VMware Directory Service (vmdir), a management service for virtual infrastructure, allows a attacker to escalate their privileges.

The vulnerability of the VMware Directory Service vmdir, a component of the VMware vCenter Server virtualization infrastructure management tool, is related to lack of access control mechanisms. Exploiting this vulnerability could allow an attacker to increase their privileges remotely...