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CVE-2026-40417

7.8 · HIGH

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

Published May 12, 2026microsoftCWE-1390EPSS 0.27%

Overview

CVE-2026-40417 is a high-severity vulnerability affecting microsoft dynamics_365_business_central. It was published on May 12, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

Remediation

Check the references section for vendor advisories and patches from microsoft. Update dynamics_365_business_central to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417

How CyberStrike helps

Frequently asked questions

What is CVE-2026-40417?

CVE-2026-40417 is a high-severity vulnerability affecting microsoft dynamics_365_business_central. It was published on May 12, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-40417?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-40417?

Check the references section for vendor advisories and patches from microsoft. Update dynamics_365_business_central to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-40417?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40417 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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