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Microsoft Security Response CenterCVE-2026-77908

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

Read the vendor bulletin Get alerts for Microsoft Dynamics 365 Customer Engagement
8.8CVSS out of 10High severity
Scope

What the vendor says is affected

  • Microsoft Dynamics 365 Customer Engagement V9.1

Versions the vendor lists as fixed

  • 9.1.0048.0004
Next step

What the vendor recommends

Install KB5123731.

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-77908View CVSS, KEV, EPSS, and threat context
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