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CVE Watch—

CVE-2023-20867

VMware Tools Authentication Bypass Vulnerability

CVSS

—

No CVSS

EPSS

13.5%

p96

KEV

YES

Jun 23, 2023

Exploit Today

79

0-100

Published: — · Last modified: —

EPSS · 30d
13.5%EPSS · 30 days13.5%
2026-08-022026-08-31
KEV catalog record

Product

VMware / Tools

Vulnerability

VMware Tools Authentication Bypass Vulnerability

Added to KEV

Jun 23, 2023

Remediate by

Jul 14, 2023

Known ransomware use

No

Summary 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.

Required action

Apply updates per vendor instructions.

Notes

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

Related CVEs

No related CVEs by CWE or product.