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.

• CWE-287

• http://www.openwall.com/lists/oss-security/2023/10/16/11Mailing List, Patch
• http://www.openwall.com/lists/oss-security/2023/10/16/2Mailing List, Patch
• https://lists.debian.org/debian-lts-announce/2023/08/msg00020.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/Mailing List, Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/Mailing List, Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/Mailing List, Release Notes
• https://security.netapp.com/advisory/ntap-20230725-0001/Third Party Advisory
• https://www.debian.org/security/2023/dsa-5493Mailing List, Third Party Advisory
• https://www.vmware.com/security/advisories/VMSA-2023-0013.htmlPatch, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2023/10/16/11Mailing List, Patch
• http://www.openwall.com/lists/oss-security/2023/10/16/2Mailing List, Patch
• https://lists.debian.org/debian-lts-announce/2023/08/msg00020.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/Mailing List, Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/Mailing List, Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/Mailing List, Release Notes
• https://security.netapp.com/advisory/ntap-20230725-0001/Third Party Advisory
• https://www.debian.org/security/2023/dsa-5493Mailing List, Third Party Advisory
• https://www.vmware.com/security/advisories/VMSA-2023-0013.htmlPatch, Vendor Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20867US Government Resource

Published

Jun 13, 2023

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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