Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
n/a VMware vCenter Server — VMware vCenter Server
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H H H 9.8 .9952 99.9 YES
AFFECTED
Product Versions Fixed
VMware vCenter Server 7.x before 7.0 U1c – —
VMware Cloud Foundation 4.x before 4.2 – —
TIMELINE
Jan 4 Reserved by vmware
Nov 3 Added to CISA KEV, remediation due 2021-11-17
Nov 3 Published (CNA: vmware)
Aug 12 EXPLOIT PUBLISHED — CVE-2021-21972 (VMware vCenter Server). Public exploit reference added.
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).
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| January 4, 2021 | Reserved | Reserved by vmware |
| November 3, 2021 | KEV ADDED | Added to CISA KEV, remediation due 2021-11-17 |
| November 3, 2021 | Published | Published (CNA: vmware) |
| August 12, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2021-21972 (VMware vCenter Server). Public exploit reference added. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| n/a | VMware vCenter Server | — | 7.x before 7.0 U1c | — |
| n/a | VMware Cloud Foundation | — | 4.x before 4.2 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-21972 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.