What is GHSA-4mwc-fv8c-wp9f?

GHSA-4mwc-fv8c-wp9f is a security advisory published by GitHub Security Advisories with High severity. OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5...

Which CVE IDs does GHSA-4mwc-fv8c-wp9f cover?

GHSA-4mwc-fv8c-wp9f covers the following CVE IDs: CVE-2021-21974. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4mwc-fv8c-wp9f?

GHSA-4mwc-fv8c-wp9f has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-4mwc-fv8c-wp9fHighCVSS 8.8

OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5...

Vendor

GitHub Security Advisories

Published

May 24, 2022

Last Modified

June 2, 2026

🔗 CVE IDs covered (1)

CVE-2021-21974 →

📋 Description

OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5 before ESXi650-202102101-SG) has a heap-overflow vulnerability. A malicious actor residing within the same network segment as ESXi who has access to port 427 may be able to trigger the heap-overflow issue in OpenSLP service resulting in remote code execution.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2021-21974
https://www.vmware.com/security/advisories/VMSA-2021-0002.html
http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.html
https://www.zerodayinitiative.com/advisories/ZDI-21-250
https://github.com/advisories/GHSA-4mwc-fv8c-wp9f