high7.8Known exploited
CVE-2021-40449
Microsoft Windows Win32k Privilege Escalation Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-17. Federal due date: 2021-12-01.
Apply updates per vendor instructions.
Impact
Win32k Elevation of Privilege Vulnerability
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1507 | before 10.0.10240.19086 |
| Microsoft | Windows 10 1607 | before 10.0.14393.4704 |
| Microsoft | Windows 10 1809 | before 10.0.17763.2237 |
| Microsoft | Windows 10 1909 | before 10.0.18363.1854 |
| Microsoft | Windows 10 2004 | before 10.0.19041.1288 |
| Microsoft | Windows 10 20h2 | before 10.0.19041.1288 |
| Microsoft | Windows 10 21h1 | before 10.0.19041.1288 |
| Microsoft | Windows 11 | All versions |
| Microsoft | Windows 11 21h2 | before 10.0.22000.258 |
| Microsoft | Windows 7 | All versions |
| Microsoft | Windows 8.1 | All versions |
| Microsoft | Windows Rt 8.1 | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449
- http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449