CVEvulnerability

CVE-2023-20867

3.9 LOW Known exploited Published 2023-06-13 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

VMware Tools Authentication Bypass Vulnerability — VMware Tools

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.

Added to KEV: 2023-06-23
Remediation due: 2023-07-14
Ransomware use: Unknown
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

Status: Analyzed
Published: 2023-06-13
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 3.9 LOW — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
CVSS 3.1 ([email protected]): 3.9 LOW — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Weaknesses: CWE-287

Description

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.

Affected configurations

• vmware tools (>= 10.3.0 < 12.2.5) • debian debian linux 10.0 • debian debian linux 11.0 • debian debian linux 12.0 • fedoraproject fedora 37 • fedoraproject fedora 38 • fedoraproject fedora 39

Weakness · CWE (1)

CWE-287 Improper Authentication weakness

References