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CVE-2021-31196

Known Exploited (CISA KEV)HIGH

7.2

CVSS Severity Score

EPSS Score90.8150%

EPSS Percentile86.90th

PublishedJul 14, 2021

Last ModifiedOct 29, 2025

Vulnerability Description

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected Platforms (CPE)

📦

Microsoft

Exchange Server

= 2013

📦

Microsoft

Exchange Server

= 2016

📦

Microsoft

Exchange Server

= 2016

📦

Microsoft

Exchange Server

= 2019

📦

Microsoft

Exchange Server

= 2019

References & Advisories

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31196

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31196

🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31196

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