CVE-2021-33739
Microsoft DWM Core Library Elevation of Privilege Vulnerability
- Published
- Jun 8, 2021
- Updated
- Oct 21, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Nov 3, 2021
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 93.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Microsoft DWM Core Library Elevation of Privilege Vulnerability
Sources
4Proof-of-concept exploit for CVE-2021-33739 and CVE-2021-26868, demonstrating local privilege escalation on Windows systems through binary exploitation techniques.
Analysis and proof-of-concept exploit for CVE-2021-33739, a Windows kernel privilege escalation vulnerability, with educational resources for understanding the exploitation technique.
- KernelhubExploit
🌴Linux, macOS, Windows Kernel privilege escalation vulnerability collection, with compilation environment, demo GIF map, vulnerability details, executable file (Privilege Escalation Vulnerability Collection)
Responsible use
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