Vulnerability Details : CVE-2021-21994

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.
Published 2021-07-13 19:15:09
Updated 2022-06-02 19:18:42
Source VMware
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2021-21994

Exploit prediction scoring system (EPSS) score for CVE-2021-21994

EPSS FAQ
0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 19 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21994

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
 NIST
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST

CWE ids for CVE-2021-21994

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-21994

Jump to
This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!
Accept Close