Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
Priority MEDIUM 41Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.
Summary
Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02175 82nd percentileScored 2026-11-07
Fix Fixed Microsoft: 3 updates
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14 | 16.0 to before 16.0.27253 | 16.0.27253 | Patch available | CNA |
| Microsoft | Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8 | 17.0 to before 17.0.27235 | 17.0.27235 | Patch available | CNA |
| Microsoft | Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3 | 18.0 to before 18.0.27469 | 18.0.27469 | Patch available | CNA |
- Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14 VendorMicrosoft Affected 16.0 to before 16.0.27253 Fixed in 16.0.27253 Patch available CNA
- Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8 VendorMicrosoft Affected 17.0 to before 17.0.27235 Fixed in 17.0.27235 Patch available CNA
- Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3 VendorMicrosoft Affected 18.0 to before 18.0.27469 Fixed in 18.0.27469 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_1:*:*:*:*:*:* | 2020 release_wave_1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_2:*:*:*:*:*:* | 2020 release_wave_2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:dynamics_365_business_central:2021:release_wave_1:*:*:*:*:*:* | 2021 release_wave_1 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_1:*:*:*:*:*:* Versions 2020 release_wave_1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:dynamics_365_business_central:2020:release_wave_2:*:*:*:*:*:* Versions 2020 release_wave_2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:dynamics_365_business_central:2021:release_wave_1:*:*:*:*:*:* Versions 2021 release_wave_1 Vulnerable ·Microsoft
Remediation
Microsoft 3 updates
- Security Update
- Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14 16.0.27253
- Security Update
- Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8 17.0.27235
- Security Update
- Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3 18.0.27469
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Remote Code Execution
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34474
- 2026-10-03 Alias added: GHSA-x2h5-v5cw-xpq3
References
More Microsoft Dynamics 365 Business Central vulnerabilities
- TI-2020-00875 An remote code execution vulnerability exists in Microsoft Dynamics Business Central, aka… CVSS 3.1HIGH 8.0
- TI-2024-25504 Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-23317 Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2020-00991 A remote code execution vulnerability exists in Microsoft Dynamics Business Central, aka… CVSS 3.1HIGH 8.0
- TI-2024-23316 Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.3
- TI-2020-00987 Information disclosure in Microsoft Dynamics NAV 2016 CVSS 3.1HIGH 7.5
Sources
- CVE-2021-34474 · CVE Program
- CVE-2021-34474 · NVD
- FIRST EPSS
- GHSA-x2h5-v5cw-xpq3 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-34474 · Microsoft Security Update Guide
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