LOWCVSS v3.1 3.9Actively exploited · CISA KEV since 2023-06-23Vulnerability
CVE-2023-20867
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.
Properties
- Vulnerability name
- VMware Tools Authentication Bypass Vulnerability
- First seen
- 2025-10-21T23:05:46+00:00
- Cvss score
- 3.9
- Epss score
- 0.13638
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2023-07-14
- Euvd assigner
- vmware
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2023-06-23T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2023-06-23
- Score
- 3.9
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Cvss vector
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 3.9
- Vector
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- Vendor project
- VMware
Related Entities (10)
AFFECTS_PRODUCT (7)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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