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CVE-2021-34474

Microsoft Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14, Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8, Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3

CVE-2021-34474 affects Microsoft Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14, Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8, Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS
7.2
EPSS
2.16%
80.9% percentile
CISA KEV
Not listed
Published
2021.07.15
PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability2.16%
Technical severityCVSS 7.2

Vulnerability overview

CVE-2021-34474 affects Microsoft Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14, Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8, Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product
Microsoft Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14, Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8, Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3
Affected versions
>= 16.0 < 16.0.27253, >= 17.0 < 17.0.27235, >= 18.0 < 18.0.27469, 2020, 2021
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Microsoft Dynamics 365 Business Central 2020 Release Wave 1 - Update 16.14, Microsoft Dynamics 365 Business Central 2020 Release Wave 2 - Update 17.8, Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.3 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
Not available