CISA Known Exploited Vulnerability

CVE-2021-21985 Ransomware

VMware · vCenter Server

VMware vCenter Server Improper Input Validation Vulnerability

Date added 2021-11-03

BOD 22-01 due date 2021-11-17

CWE CWE-20, CWE-470, CWE-918

Ransomware Known

CISA description

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.

Required action

Apply updates per vendor instructions.

Notes & references

https://nvd.nist.gov/vuln/detail/CVE-2021-21985

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

RA-5 · Vulnerability Monitoring and Scanning
SI-2 · Flaw Remediation
CM-6 · Configuration Settings
SI-7 · Software, Firmware, and Information Integrity
CM-8 · System Component Inventory

External lookups

NVD · CVE-2021-21985
CVE.org · CVE-2021-21985
CISA KEV catalog (canonical)