What’s Vulnerable › Vulnerabilities

CVE-2026-100214: Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-31
• Weakness: CWE-502

Description

Deserialization of untrusted data in Dynamics Business Central allows an authorized attacker to execute code over a network.

Affected products

• Microsoft Dynamics NAV 2018: from 1.0 before 11.0.50736.0 — fixed in 11.0.50736.0
• Microsoft Dynamics NAV 2017: from 1.0 before 30713 — fixed in 30713

How to fix

Upgrade to a fixed version: Microsoft Dynamics NAV 2018 11.0.50736.0; Microsoft Dynamics NAV 2017 30713. Check the vendor advisory for mitigations.

In the news

• Microsoft’s October 2026 Patch Tuesday addresses 1407 CVEs (CVE-2026-96951)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100214

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