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8.0

Microsoft Dynamics 365 Business Central Remote Code Execution Risk

CVE-2021-34474 · published 5 years ago
Summary

Microsoft Dynamics 365 Business Central has a security flaw that allows hackers to execute malicious code remotely. This could lead to unauthorized access to sensitive business data. Microsoft is working on a fix, and we recommend updating to the latest version to protect your business.

What to do
  • Update microsoft microsoft dynamics 365 business central 2020 release wave 1 - update 16.14 to version 16.0.27253 or later.
  • Update microsoft microsoft dynamics 365 business central 2020 release wave 2 - update 17.8 to version 17.0.27235 or later.
  • Update microsoft microsoft dynamics 365 business central 2021 release wave 1 - update 18.3 to version 18.0.27469 or later.
Affected software
VendorProductAffected versions
microsoft microsoft dynamics 365 business central 2020 release wave 1 - update 16.14 < 16.0.27253
microsoft microsoft dynamics 365 business central 2020 release wave 2 - update 17.8 < 17.0.27235
microsoft microsoft dynamics 365 business central 2021 release wave 1 - update 18.3 < 18.0.27469
microsoft dynamics_365_business_central 2020
2021
cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_1:*:*:*:*:*:*
Original advisory text
Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.0 High
Exploitation
2% chance of attack within 30 days
Timeline
Published14 Jul 2021
Updated4 Nov 2026
First seen10 Aug 2026
Sources
CVE-2021-34474 · NVD
CVE-2021-34474 · MITRE
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