CVE-2026-59309: vCenter authentication-bypass vulnerability
Published Jul 30, 2026
·Updated
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 Software
35 affected components
VMware vCenter
VMware VMware Directory Service
All of the following
Any of the following
VMware vCenter Server<8.0
VMware vCenter Server=8.0
VMware vCenter Server=8.0-a
VMware vCenter Server=8.0-b
VMware vCenter Server=8.0-c
VMware vCenter Server=8.0-update1
VMware vCenter Server=8.0-update1a
VMware vCenter Server=8.0-update1b
VMware vCenter Server=8.0-update1c
VMware vCenter Server=8.0-update1d
VMware vCenter Server=8.0-update1e
VMware vCenter Server=8.0-update2
VMware vCenter Server=8.0-update2a
VMware vCenter Server=8.0-update2b
VMware vCenter Server=8.0-update2c
VMware vCenter Server=8.0-update2d
VMware vCenter Server=8.0-update2e
VMware vCenter Server=8.0-update3
VMware vCenter Server=8.0-update3a
VMware vCenter Server=8.0-update3b
VMware vCenter Server=8.0-update3c
VMware vCenter Server=8.0-update3d
VMware vCenter Server=8.0-update3e
VMware vCenter Server=8.0-update3g
VMware vCenter Server=8.0-update3h
VMware vCenter Server=8.0-update3i
VMware vCenter Server=8.0-update3j
Any of the following
VMware Telco Cloud Infrastructure=3.0
VMware Telco Cloud Platform>=3.0<=5.2
All of the following
Any of the following
VMware vCenter Server>=9.0<9.0.2.0100
VMware vCenter Server>=9.1<9.1.0.0300
Any of the following
VMware Cloud Foundation
VMware Vsphere Foundation
Event History
Jul 30, 2026
CVE Published
via MITRE·12:19 PM
Data Sourced
via MITRE·12:19 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:16 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-59309?
The severity of CVE-2026-59309 is critical with a CVSS score of 9.8.
2
How do I fix CVE-2026-59309?
To fix CVE-2026-59309, apply the latest security patches provided by VMware for vCenter.
3
What type of attack is associated with CVE-2026-59309?
CVE-2026-59309 is associated with an authentication bypass attack that allows unauthorized access to vCenter.
4
Who is affected by CVE-2026-59309?
Organizations using VMware vCenter and VMware Directory Service are affected by CVE-2026-59309.
5
What are the potential impacts of CVE-2026-59309?
The potential impacts of CVE-2026-59309 include unauthorized access to sensitive data and administrative privileges on the vCenter system.