Vulnerability in Vmware Cloud Foundation
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.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Vmware Cloud Foundation — versions 9.1.x.x, 9.0.x.x, 5.x
- Vmware Telco Cloud Infrastructure — versions 3.0
- Vmware Telco Cloud Platform — versions 5.1.x, 5.0.x, 4.x
- Vmware Vcenter — versions 9.1.x.x, 9.0.x.x, 8.0
- Vmware Vsphere Foundation — versions 9.1.x.x, 9.0.x.x
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-59309?
- CVE-2026-59309 is a critical-severity vulnerability in Vmware Cloud Foundation, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 9.8/10. Published 2026-07-30.
- How severe is CVE-2026-59309?
- Critical severity. CVSS v3 base score is 9.8 out of 10.