CVE-2021-1732

high Microsoft ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
EPSS Score
77.8%
Exploitation probability in 30 days
Top 0% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: February 25, 2021 (2020 days ago)
Last Modified: August 12, 2026
Vendor: Microsoft
Source: MITRE

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2021-11-03
Remediation Due: 2021-11-17 (⚠ 1756d overdue)
Ransomware Campaign: Known

Description

Windows Win32k Elevation of Privilege Vulnerability

Affected Products

Microsoft Windows 10 Version 1803Microsoft Windows 10 Version 1809Microsoft Windows Server 2019Microsoft Windows Server 2019 (Server Core installation)Microsoft Windows 10 Version 1909Microsoft Windows Server, version 1909 (Server Core installation)Microsoft Windows 10 Version 2004Microsoft Windows Server version 2004Microsoft Windows 10 Version 20H2Microsoft Windows Server version 20H2

References

🔗 portal.msrc.microsoft.com 🔗 packetstormsecurity.com 🔗 packetstormsecurity.com