CVE-2023-20867
VMware Tools Authentication Bypass Vulnerability
CVSS Score
3.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-287 |
| Vendor | vmware |
| Product | vmware tools |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jun 13, 2023 |
| Last Updated | Oct 21, 2025 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
VMware / VMware Tools
All versions affected References
vmware.com: https://www.vmware.com/security/advisories/VMSA-2023-0013.html security.netapp.com: https://security.netapp.com/advisory/ntap-20230725-0001/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2023/08/msg00020.html debian.org: https://www.debian.org/security/2023/dsa-5493 lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/ lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/ lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/ openwall.com: http://www.openwall.com/lists/oss-security/2023/10/16/2 openwall.com: http://www.openwall.com/lists/oss-security/2023/10/16/11 cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20867