Medium severity6.5NVD Advisory· Published Sep 22, 2021· Updated Jun 17, 2026
CVE-2021-21992
CVE-2021-21992
Description
The vCenter Server contains a denial-of-service vulnerability due to improper XML entity parsing. A malicious actor with non-administrative user access to the vCenter Server vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash) may exploit this issue to create a denial-of-service condition on the vCenter Server host.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
57cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*+ 54 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:update1:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update1b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update1c:*:*:*:*:*:*
- 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:6.5:update3n:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.5:update3p:*:*:*:*:*:*
- 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:6.7:update3l:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3m:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:6.7:update3n:*:*:*:*:*:*
- 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:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2b:*:*:*:*:*:*
- (no CPE)
- VMware/vCenter Serverdescription
Patches
Vulnerability mechanics
References
1- www.vmware.com/security/advisories/VMSA-2021-0020.htmlnvdVendor Advisory
News mentions
0No linked articles in our index yet.