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CVE-2023-20867: VMware Tools Authentication Bypass Vulnerability
VMware Tools · in CISA KEV since 2023-06-23
2023-06-23added to KEV
2023-07-14federal remediation due date
13.53%EPSS exploit probability (30 days) 96.3th percentile
3.9 LOWCVSS 3.1
Unknownknown ransomware use
10days from NVD publication to KEV
What it is
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 (CISA)
Apply updates per vendor instructions.
| CWE | CWE-287 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
| NVD published | 2023-06-13 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2023-20867.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.