CVEvulnerability

CVE-2021-21994

9.8 CRITICAL Published 2021-07-13 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-07-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-287

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.

Affected configurations

• vmware cloud foundation (>= 3.0 < 3.10.2) • vmware cloud foundation (>= 4.0 < 4.3) • vmware esxi 6.5 • vmware esxi 6.7 • vmware esxi 7.0

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References