CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It affects ESXi. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Detected Signals
exploit
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2021-21994
Severity
CRITICAL
CVSS
9.8
EPSS
1.16%
ESXi
Original NVD Description
SFCB (Small Footprint CIM Broker) as used in ESXi has an authentication bypass vulnerability. A malicious actor with network access to port 5989 on ESXi may exploit this issue to bypass SFCB authentication by sending a specially crafted request.
Related CVEs
Other vulnerabilities affecting the same vendor(s)