CVE-2023-20867β€”VMware Tools Authentication Bypass Vulnerability

PUBLISHEDvulnerability record
2023-06-23 Β· last modified June 21, 2025

Metadata

CVE ID:
CVE-2023-20867
Project:
VMware
Product:
Tools
Date Added:
2023-06-23
Due Date:
2023-07-14
Last Updated:
June 21, 2025

Vulnerability Name

VMware Tools Authentication Bypass Vulnerability

Description

VMware Tools contains an authentication bypass vulnerability in the vgauth module. A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine. An attacker must have root access over ESXi to exploit this vulnerability.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://www.vmware.com/security/advisories/VMSA-2023-0013.html
  • https://nvd.nist.gov/vuln/detail/CVE-2023-20867

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