CVE-2020-17144 HIGH

CVE-2020-17144: Microsoft Exchange Remote Code Execution Vulnerability

Vendor Microsoft
Product Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 31
KEV Status Known Exploited
Published December 9, 2020
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

8.4/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

What the vulnerability does

01Description

Microsoft Exchange Remote Code Execution Vulnerability

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions.

Key dates

03Disclosure timeline

December 9, 2020 CVE published
June 9, 2026 Record updated