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CISA Known Exploited Vulnerability

This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.

CVE

CVE-2021-21972

9.8

CVSScritical

Exploitable remotely over the internet · no authentication required.

Description

The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).

Attack Vector

Network

Privileges Req.

None

User Interaction

None

vmware vcenter servervmware cloud foundation

Updated Sep 18, 2026View on NVD →

S4E scanner

criticalProduct Based Web Vulnerabilities~15 seconds

CVE-2021-21972 Scanner

Detects 'Remote Code Execution (RCE)' vulnerability in VMware vCenter Server and VMware Cloud Foundation affects v. VMware vCenter Server 7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n and VMware Cloud Foundation 4.x before 4.2 and 3.x before 3.10.1.2.

Used 2.8k times · 5.9k assets checked · url

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