What is CVE-2026-77908?

CVE-2026-77908 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Which CVE IDs does CVE-2026-77908 cover?

CVE-2026-77908 covers the following CVE IDs: CVE-2026-77908. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-77908?

CVE-2026-77908 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-77908?

CVE-2026-77908 affects 1 product, including: Microsoft Dynamics 365 Customer Engagement V9.1.

CVE-2026-77908HighCVSS 8.8

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

September 11, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-77908 →

📋 Description

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

🎯 Affected products1

Microsoft Dynamics 365 Customer Engagement V9.1

✅ Remediation

KB5123731 (Security Update) — fixed build 9.1.0048.0004

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77908
patchhttps://www.microsoft.com/en-us/download/details.aspx?id=108793
referencehttps://support.microsoft.com/help/5123731