Home/CVE/The vCenter Server contains a denial-of-service vulnerability due to improper XML entity parsing. A malicious actor with
CVE

CVE-2021-21992

The vCenter Server contains a denial-of-service vulnerability due to improper XML entity parsing. A malicious actor with

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.

MEDIUM · CVSS 6.5 EPSS 0.00926
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

3
vmware cloud foundation>= 3.0 and < 3.10.2.2
vmware cloud foundation>= 4.0 and < 4.3
vmware vcenter serverall versions
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@vmware.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Sep 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
vmware-vmsavmware-vmsa-security-advisories-vmsa-2021-0020-README
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.vmware.com/security/advisories/VMSA-2021-0020.htmlVendor Advisory
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