Review reviewHigh

CVE-2026-40417

Microsoft Microsoft Dynamics 365 Business Central 2024 Release Wave 2, Microsoft Dynamics 365 Business Central 2026 Release Wave 1, Microsoft Dynamics 365 Business Central Release Wave 1 2025

Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.05.13
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.

Affected product and versions

Product
Microsoft Microsoft Dynamics 365 Business Central 2024 Release Wave 2, Microsoft Dynamics 365 Business Central 2026 Release Wave 1, Microsoft Dynamics 365 Business Central Release Wave 1 2025
Affected versions
>= 25.0 < 25.2.48119, >= 28.0 < 28.0.49873, >= 26.0 < 26.0.48120, >= 27.0 < 27.0.48102, 2024, 2025, 2026
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 2024 Release Wave 2, Microsoft Dynamics 365 Business Central 2026 Release Wave 1, Microsoft Dynamics 365 Business Central Release Wave 1 2025 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-1390
CVE-2026-40417 — Microsoft Microsoft Dynamics 365 Business Central 2024 Release Wave 2, Microsoft Dynamics 365 Business Central 2026 Release Wave 1, Microsoft Dynamics 365 Business Central Release Wave 1 2025 | SECUFOCUS NOW