CVE-2020-1066
An elevation of privilege vulnerability exists in .NET Framework which could allow an attacker to elevate their privilege level.To exploit the...
- Published
- May 21, 2020
- Updated
- Aug 4, 2024
- Assigning CNA
- microsoft
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 83.9%
- 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.
Summary
An elevation of privilege vulnerability exists in .NET Framework which could allow an attacker to elevate their privilege level.To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program.The update addresses the vulnerability by correcting how .NET Framework activates COM objects., aka '.NET Framework Elevation of Privilege Vulnerability'.
Sources
2- CVE-2020-1066-EXPExploit
Local privilege escalation exploit for CVE-2020-1066 targeting Windows 7 and Server 2008 R2. Leverages arbitrary file replacement via Windows CardSpace service (idsvc) symbolic link abuse to achieve SYSTEM-level code execution.
- cve-2020-1066Exploit
Exploit code for CVE-2020-1066 with accompanying blog analysis, demonstrating a specific Windows privilege escalation vulnerability.
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