---
cve: "CVE-2021-21986"
severity: "LOW"
cvss: 3.1
epss: "12.9%"
vendor: "n/a"
kev: false
exploited: false
published: "2021-05-26 15:15:07"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T10:57:50+02:00"
---

# CVE-2021-21986

> 3.1 LOW · 🧪 PoC

## Beschreibung

The vSphere Client (HTML5) contains a vulnerability in a vSphere authentication mechanism for the Virtual SAN Health Check, Site Recovery, vSphere Lifecycle Manager, and VMware Cloud Director Availability plug-ins. A malicious actor with network access to port 443 on vCenter Server may perform actions allowed by the impacted plug-ins without authentication.

## Referenzen

- <https://www.vmware.com/security/advisories/VMSA-2021-0010.html>
- <http://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-21986) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_