CVE-2020-1054
Microsoft Win32k Privilege Escalation Vulnerability
- Published
- May 21, 2020
- 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:L/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.0%
- 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
An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1143.
Sources
4- cve-2020-1054Exploit
Rust implementation of a Windows 7 x64 local privilege escalation exploit for CVE-2020-1054; compiles via Cargo and executes to elevate privileges.
- CVE-2020-1054Exploit
Educational proof-of-concept exploit for CVE-2020-1054, a Windows kernel privilege escalation vulnerability, with analysis references and token-stealing techniques.
- CVE-2020-1054Exploit
Windows 7 LPE
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