CVE-2023-20867

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 3/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

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.

CISA Known Exploited Vulnerability

Vendor / Product VMware — Tools
Date Added 2023-06-23
Remediation Due 2023-07-14
https://www.vmware.com/security/advisories/VMSA-2023-0013.html; https://nvd.nist.gov/vuln/detail/CVE-2023-20867

Bug Bounty Relevance

3 / 100
✓ Known exploited (KEV)

CVSS Score

Unscored

EPSS — Exploitation Probability

13.64%
Raw Score 0.136380
Percentile 96.5%
Date 2026-10-28

Intelligence Sources

kev ref →