Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Adjacent_network
0

CVE-2021-26443

Disclosure Date: November 10, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability

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CVSS V3 Severity and Metrics
Base Score:
9.0 Critical
Impact Score:
6
Exploitability Score:
2.3
Vector:
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector (AV):
Adjacent_network
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • Microsoft

Products

  • Windows,
  • Windows Server,
  • Windows 10 Version 1909 for x64-based Systems,
  • Windows 10 Version 21H1 for x64-based Systems,
  • Windows Server 2022,
  • Windows Server 2022 (Server Core installation),
  • Windows 10 Version 2004 for x64-based Systems,
  • Windows Server, version 2004 (Server Core installation),
  • Windows 10 Version 20H2 for x64-based Systems,
  • Windows Server, version 20H2 (Server Core Installation),
  • Windows 11 for x64-based Systems

Additional Info

Technical Analysis