Is CVE-2020-0646 actively exploited?

CVE-2020-0646 has no public evidence of in-the-wild exploitation as of 2025-10-29.

What is the CVSS score for CVE-2020-0646?

CVE-2020-0646 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2020-0646?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-0646.

Fix CVE-2020-0646 - CRITICAL microsoft .net framework

Q: Which products are affected by CVE-2020-0646?

28 products: microsoft .net framework, microsoft .net framework, microsoft .net framework, microsoft .net framework, microsoft .net framework, and 23 more.

Description

A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-91 CWE-91

Metadata

Primary Vendor: MICROSOFT
Published: 1/14/2020
Last Modified: 10/29/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_frameworkmicrosoft : .net_framework

Remediation Guidance

Executive Summary

View on NIST NVD