Vulnerability Description
Win32k Elevation of Privilege Vulnerability
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1507 | < 10.0.10240.19086 |
| Microsoft | Windows 10 1607 | < 10.0.14393.4704 |
| Microsoft | Windows 10 1809 | < 10.0.17763.2237 |
| Microsoft | Windows 10 1909 | < 10.0.18363.1854 |
| Microsoft | Windows 10 2004 | < 10.0.19041.1288 |
| Microsoft | Windows 10 20H2 | < 10.0.19041.1288 |
| Microsoft | Windows 10 21H1 | < 10.0.19041.1288 |
| Microsoft | Windows 11 | All versions |
| Microsoft | Windows 11 21H2 | < 10.0.22000.258 |
| Microsoft | Windows 7 | - |
| Microsoft | Windows 8.1 | - |
| Microsoft | Windows Rt 8.1 | - |
| Microsoft | Windows Server 2004 | < 10.0.19041.1288 |
| Microsoft | Windows Server 2008 | - |
| Microsoft | Windows Server 2012 | - |
| Microsoft | Windows Server 2016 | < 10.0.14393.4704 |
| Microsoft | Windows Server 2019 | < 10.0.17763.2237 |
| Microsoft | Windows Server 2022 | < 10.0.20348.288 |
| Microsoft | Windows Server 20H2 | < 10.0.19042.1288 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-LExploitThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4044PatchVendor Advisory
- http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-LExploitThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4044PatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-US Government Resource
FAQ
What is CVE-2021-40449?
CVE-2021-40449 is a vulnerability with a CVSS score of 7.8 (HIGH). Win32k Elevation of Privilege Vulnerability
How severe is CVE-2021-40449?
CVE-2021-40449 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-40449?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 1909, Microsoft Windows 10 2004.