CVE-2026-59309

CRITICAL CVSS 3.1: 9.8 EPSS 7.94%
Updated Aug 25, 2026
VMWARE
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions 3.0 — 9.1.0.0300
Fixed In 8.0
Type CWE-303
Vendor VMWARE
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 33

Configuration From (including) Up to (excluding)
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
— 8.0
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:a:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:b:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:c:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update1:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update1a:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update1b:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update1c:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update1d:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update1e:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update2:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update2a:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update2b:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update2c:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update2d:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update2e:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3a:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3b:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3c:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3d:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3e:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3g:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3h:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3i:*:*:*:*:*:*
— —
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:8.0:update3j:*:*:*:*:*:*
— —
Vmware Telco_Cloud_Infrastructure
cpe:2.3:a:vmware:telco_cloud_infrastructure:3.0:*:*:*:*:*:*:*
— —
Vmware Telco_Cloud_Platform
cpe:2.3:a:vmware:telco_cloud_platform:*:*:*:*:*:*:*:*
3.0 <= 5.2
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
9.0 9.0.2.0100
Vmware Vcenter_Server
cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
9.1 9.1.0.0300
Vmware Cloud_Foundation
cpe:2.3:a:vmware:cloud_foundation:-:*:*:*:*:*:*:*
— —
Vmware Vsphere_Foundation
cpe:2.3:a:vmware:vsphere_foundation:-:*:*:*:*:*:*:*
— —