CRITICALCVSS 9.8Actively exploited · CISA KEV since 2021-11-03Vulnerability
CVE-2021-21985
VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution.
Properties
- Euvd product
- VMware vCenter Server and VMware Cloud Foundation
- Vulnerability name
- VMware vCenter Server Improper Input Validation Vulnerability
- First seen
- 2026-08-12T03:55:45+00:00
- Cvss score
- 9.8
- Epss score
- 0.99999
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2021-11-17
- Euvd assigner
- vmware
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2021-11-03T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2021-11-03
- Euvd base score version
- 3.1
- Score
- 9.8
- Fetched at
- 2026-10-20T10:36:20+00:00
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 9.8
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Related Entities (57 · showing 25)
AFFECTS_PRODUCT (52 · showing 20)
HAS_WEAKNESS (3)
DESCRIBES (1)
INVOLVES (1)
Explore deeper with Ninja Signal's threat intelligence graph