← CVE Radar
CVE-2021-40449Win32k Elevation of Privilege Vulnerability
Win32k Elevation of Privilege Vulnerability
7.8 HIGHEPSS 81.93%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.8 | HIGH | 3.1microsoft (CNA) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 7.8 | HIGH | 3.1microsoft (CNA) | 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 |
| 4.6 | MEDIUM | 2.0NVD | AV:L/AC:L/Au:N/C:P/I:P/A:P |
CISA required action
⚡ Known exploited · remediation due Dec 1, 2021
Apply updates per vendor instructions.
Details
- CVE ID
- CVE-2021-40449
- Status
- Analyzed
- Assigner (CNA)
- microsoft
- Published
- Oct 13, 2021
- Last modified
- 2026-06-17 04:06 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
MicrosoftWindows 10 Version 18091 version range
- 10.0.0 before 10.0.17763.2237
MicrosoftWindows Server 20191 version range
- 10.0.0 before 10.0.17763.2237
MicrosoftWindows Server 2019 (Server Core installation)1 version range
- 10.0.0 before 10.0.17763.2237
MicrosoftWindows 10 Version 19091 version range
- 10.0.0 before 10.0.18363.1854
MicrosoftWindows 10 Version 21H11 version range
- 10.0.0 before 10.0.19041.1288
MicrosoftWindows Server 20221 version range
- 10.0.0 before 10.0.20348.288
MicrosoftWindows 10 Version 20041 version range
- 10.0.0 before 10.0.19041.1288
MicrosoftWindows Server version 20041 version range
- 10.0.0 before 10.0.19041.1288
MicrosoftWindows 10 Version 20H21 version range
- 10.0.0 before 10.0.19041.1288
MicrosoftWindows Server version 20H21 version range
- 10.0.0 before 10.0.19042.1288
MicrosoftWindows 11 version 21H21 version range
- 10.0.0 before 10.0.22000.258
MicrosoftWindows 10 Version 15071 version range
- 10.0.0 before 10.0.10240.19086
MicrosoftWindows 10 Version 16071 version range
- 10.0.0 before 10.0.14393.4704
MicrosoftWindows Server 20161 version range
- 10.0.0 before 10.0.14393.4704
MicrosoftWindows Server 2016 (Server Core installation)1 version range
- 10.0.0 before 10.0.14393.4704
MicrosoftWindows 71 version range
- 6.1.0 before 6.1.7601.25740
MicrosoftWindows 7 Service Pack 11 version range
- 6.1.0 before 6.1.7601.25740
MicrosoftWindows 8.11 version range
- 6.3.0 before 6.3.9600.20144
MicrosoftWindows Server 2008 Service Pack 21 version range
- 6.0.0 before 6.0.6003.21251
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)1 version range
- 6.0.0 before 6.0.6003.21251
MicrosoftWindows Server 2008 Service Pack 21 version range
- 6.0.0 before 6.0.6003.21251
MicrosoftWindows Server 2008 R2 Service Pack 11 version range
- 6.1.0 before 6.1.7601.25740
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)1 version range
- 6.0.0 before 6.1.7601.25740
MicrosoftWindows Server 20121 version range
- 6.2.0 before 6.2.9200.23490
MicrosoftWindows Server 2012 (Server Core installation)1 version range
- 6.2.0 before 6.2.9200.23490
MicrosoftWindows Server 2012 R21 version range
- 6.3.0 before 6.3.9600.20144
MicrosoftWindows Server 2012 R2 (Server Core installation)1 version range
- 6.3.0 before 6.3.9600.20144
References
- packetstormsecurity.com http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html
- portal.msrc.microsoft.com https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449