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TI-2020-12866 Aliases CVE-2020-16862GHSA-gq5c-8h36-jg2x

Microsoft Dynamics 365 (on-premises) Remote Code Execution Vulnerability

Priority MEDIUM 46Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

<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>

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03392 88th percentileScored 2026-11-07
Fix Fixed Microsoft Dynamics 365 (on-premises) version 9.0 (Microsoft): publication

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Dynamics 365 (on-premises) version 9.09.0.0 to before publicationpublicationPatch availableCNA
  • Microsoft Dynamics 365 (on-premises) version 9.0 VendorMicrosoft Affected 9.0.0 to before publication Fixed in publication Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:dynamics_365:9.0:*:*:*:*:*:*:*9.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:dynamics_365:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Dynamics 365 (on-premises) version 9.0 (Microsoft) Fixed in publication

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16862
  2. 2026-10-03 Alias added: GHSA-gq5c-8h36-jg2x

References

Patch 1

  • TI-2018-06256 Improper output encoding in Microsoft Dynamics 365 CVSS 3.0HIGH 8.8
  • TI-2026-31102 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.9
  • TI-2024-25464 Microsoft Dynamics 365 Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-15512 Microsoft Dynamics CRM (on-premises) Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-35158 Dynamics 365 Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.9
  • TI-2022-16246 Microsoft Dynamics CRM (on-premises) Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
See all 102 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences