Attacker Value
Unknown
(1 user assessed)
Exploitability
Very High
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
1

CVE-2021-38666

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

Description

Remote Desktop Client Remote Code Execution Vulnerability

Add Assessment

1
Ratings
  • Exploitability
    Very High
Technical Analysis

Remote Desktop Client Remote Code Execution Vulnerability

Source: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-38666

CVSS V3 Severity and Metrics
Base Score:
8.8 High
Impact Score:
5.9
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • Microsoft

Products

  • Windows,
  • Windows Server,
  • Windows 10 Version 1909 for 32-bit Systems,
  • Windows 10 Version 1909 for x64-based Systems,
  • Windows 10 Version 1909 for ARM64-based Systems,
  • Remote Desktop client for Windows Desktop,
  • Windows 10 Version 21H1 for x64-based Systems,
  • Windows 10 Version 21H1 for ARM64-based Systems,
  • Windows 10 Version 21H1 for 32-bit Systems,
  • Windows Server 2022,
  • Windows Server 2022 (Server Core installation),
  • Windows 10 Version 2004 for 32-bit Systems,
  • Windows 10 Version 2004 for ARM64-based Systems,
  • Windows 10 Version 2004 for x64-based Systems,
  • Windows Server, version 2004 (Server Core installation),
  • Windows 10 Version 20H2 for x64-based Systems,
  • Windows 10 Version 20H2 for 32-bit Systems,
  • Windows 10 Version 20H2 for ARM64-based Systems,
  • Windows Server, version 20H2 (Server Core Installation),
  • Windows 11 for x64-based Systems,
  • Windows 11 for ARM64-based Systems

Additional Info

Technical Analysis