What’s Vulnerable › Vulnerabilities

CVE-2020-16862: Microsoft Dynamics 365 (on-premises) Remote Code Execution Vulnerability

• Severity: medium (CVSS 6.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-09-11 · updated 2026-06-17

Description

<p>A remote code execution vulnerability exists in Microsoft Dynamics 365 (on-premises) when the server fails to properly sanitize web requests to an affected Dynamics server. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SQL service account. An authenticated attacker could exploit this vulnerability by sending a specially crafted request to a vulnerable Dynamics server. The security update addresses the vulnerability by correcting how Microsoft Dynamics 365 (on-premises) validates and sanitizes user input.</p>

Affected products

• Microsoft Dynamics 365 (on-premises) version 9.0: 9.0
• Microsoft Dynamics 365 (on-premises) version 9.0: from 9.0.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft Dynamics 365 (on-premises) version 9.0 publication. Check the vendor advisory for mitigations.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16862
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16862

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