What’s Vulnerable › Vulnerabilities

CVE-2021-34524: 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: 3.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-12 · updated 2026-08-10

Description

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Affected products

• Microsoft Dynamics 365 (on-premises) version 9.0: 9.0, 9.1
• Microsoft Dynamics 365 (on-premises) version 9.0: from 9.0.0 before 9.0.31.7 — fixed in 9.0.31.7

How to fix

Upgrade to a fixed version: Microsoft Dynamics 365 (on-premises) version 9.0 9.0.31.7. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34524
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34524

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