Critical severity9.8CISA KEVNVD Advisory· Published Feb 24, 2021· Updated Aug 12, 2026
CVE-2021-21972
CVE-2021-21972
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
44cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*range: >=3.0,<3.10.1.2
- (no CPE)range: 4.x before 4.2, 3.x before 3.10.1.2
cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*+ 41 more
- cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:e:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:f:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update1d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update1e:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update1g:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update2:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update2b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update2c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update2d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update2g:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update3:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update3d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update3f:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update3k:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update1:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update1b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update2:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update2a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update2c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3f:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3g:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3j:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
- (no CPE)range: 7.x before 7.0 U1c, 6.7 before 6.7 U3l, 6.5 before 6.5 U3n
Patches
Vulnerability mechanics
References
5- packetstormsecurity.com/files/161590/VMware-vCenter-Server-7.0-Arbitrary-File-Upload.htmlnvdExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/161695/VMware-vCenter-Server-File-Upload-Remote-Code-Execution.htmlnvdExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/163268/VMware-vCenter-6.5-6.7-7.0-Remote-Code-Execution.htmlnvdExploitThird Party AdvisoryVDB Entry
- www.vmware.com/security/advisories/VMSA-2021-0002.htmlnvdVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
News mentions
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