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CVE-2020-1066

7.8 · HIGH
Published May 21, 2020 microsoft EPSS 2.44% (83th pctl)

Overview

CVE-2020-1066 is a high-severity vulnerability affecting microsoft .net_framework. It was published on May 21, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update .net_framework to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status

Frequently Asked Questions

What is CVE-2020-1066?

CVE-2020-1066 is a high-severity vulnerability affecting microsoft .net_framework. It was published on May 21, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2020-1066?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-1066?

Check the references section for vendor advisories and patches from microsoft. Update .net_framework to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-1066?

CyberStrike's AI-powered security agents can automatically detect CVE-2020-1066 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.