CVE-2020-1066

high Microsoft
CVSS v3 Base Score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
2.3%
Exploitation probability in 30 days
Top 18% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 21, 2020 (2300 days ago)
Last Modified: August 19, 2026
Vendor: Microsoft
Source: NVD

Description

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.

CWE

NVD-CWE-noinfo

Affected Products

microsoft .net framework

References

🔗 msrc.microsoft.com 🔗 portal.msrc.microsoft.com