Auth bypass in Vmware Tools

CVE-2023-20867

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.

Vulnerability class: Broken Authentication

EPSS: 0.022 (84.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-20867?
CVE-2023-20867 is a low-severity vulnerability in Vmware Tools, classified under Improper Authentication. CVSS score: 3.9/10. Published 2023-06-13.
How severe is CVE-2023-20867?
Low severity. CVSS v3 base score is 3.9 out of 10.
Is CVE-2023-20867 known to be exploited?
Yes. CVE-2023-20867 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-06-23), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.