CVEvulnerability

CVE-2020-0646

9.8 CRITICAL Known exploited Published 2020-01-14 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Microsoft .NET Framework Remote Code Execution Vulnerability — Microsoft .NET Framework

Microsoft .NET Framework contains an improper input validation vulnerability that allows for remote code execution.

Added to KEV
2021-11-03
Remediation due
2022-05-03
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-0646
Status
Analyzed
Published
2020-01-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-91

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'.

Affected configurations

• microsoft .net framework 3.0 • microsoft .net framework 3.5 • microsoft .net framework 4.6.2 • microsoft .net framework 4.7 • microsoft .net framework 4.7.1 • microsoft .net framework 4.7.2 • microsoft .net framework 4.8 • microsoft .net framework 3.5.1 • microsoft .net framework 4.5.2 • microsoft .net framework 4.6 • microsoft .net framework 4.6.1

Related

Weakness · CWE (1)

  • CWE-91 XML Injection weakness

References