CVE-2023-20867

As of 2025-10-28, CVE-2023-20867 is a CVSS 3.9 (LOW-severity) vulnerability. CISA KEV-listed (known exploited). EPSS exploitation probability 2.7%. Threadlinqs Intelligence tracks 1 threat exploiting it.

Last updated: 2025-10-28

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.

CVSS v3 vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-287, NVD-CWE-noinfo

Exploitation status

CISA KEV-listed (known exploited)

Threats tracking this CVE

• UNC3886 Zero-Day Rootkit Campaign Targeting Singaporean Telecommunications — ORB Network C2, Fortinet/VMware Exploitation, Covert Infrastructure Persistence — CRITICAL

References

• http://www.openwall.com/lists/oss-security/2023/10/16/11
• http://www.openwall.com/lists/oss-security/2023/10/16/2
• https://lists.debian.org/debian-lts-announce/2023/08/msg00020.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/
• https://security.netapp.com/advisory/ntap-20230725-0001/
• https://www.debian.org/security/2023/dsa-5493
• https://www.vmware.com/security/advisories/VMSA-2023-0013.html
• http://www.openwall.com/lists/oss-security/2023/10/16/11

← all vulnerabilities · Markdown version · Threadlinqs Intelligence

Enriched from CVE.org, NVD (this product uses the NVD API but is not endorsed or certified by the NVD), FIRST EPSS, CISA KEV, and GitHub Security Advisories.