Attacker Value
Unknown
CVE-2021-33742
CVE-2021-33742
(Last updated June 15, 2021) ▾
MITRE ATT&CK
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3
Technical Analysis
Windows MSHTML Platform (Microsoft proprietary browser engine) enables RCE and is being actively exploited in limited campaigns.
Exploitation requires user interaction; thus, feasible threat scenarios include drive-by download, exploit kits, and phishing links.
A commercial exploit company reportedly provided the exploit code to Eastern European and Middle Eastern state-sponsored actors
1
Technical Analysis
Based on comments at this thread: https://twitter.com/ShaneHuntley/status/1402320071276433408 we should expect to see a full writeup around July 9th or so from the Google threat assessment team. Seems they will be keeping things close to the vest until then to allow people to patch in the meantime.
CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
8.8 High
Impact Score:
5.9
Exploitability Score:
2.8
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,
- 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 10 Version 2004 for 32-bit Systems,
- Windows 10 Version 2004 for ARM64-based Systems,
- Windows 10 Version 2004 for x64-based Systems,
- Windows 10 Version 20H2 for x64-based Systems,
- Windows 10 Version 20H2 for 32-bit Systems,
- Windows 10 Version 20H2 for ARM64-based Systems
Exploited in the Wild
