What is CVE-2026-77908?

CVE-2026-77908 is a high-severity vulnerability in Microsoft Dynamics 365 Customer Engagement V9.1, classified under Code Injection. CVSS score: 8.8/10. Published 2026-09-08.

How severe is CVE-2026-77908?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Microsoft Dynamics 365 Customer Engagement V9.1

CVE-2026-77908

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

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Dynamics 365 Customer Engagement V9.1

Weakness classification (CWE)

CWE-94 — Code Injection

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-77908?: CVE-2026-77908 is a high-severity vulnerability in Microsoft Dynamics 365 Customer Engagement V9.1, classified under Code Injection. CVSS score: 8.8/10. Published 2026-09-08.
How severe is CVE-2026-77908?: High severity. CVSS v3 base score is 8.8 out of 10.