CVE tracker / CVE-2026-77908

CVE-2026-77908

CVE-2026-77908 is the Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability. Microsoft rates it Important, CVSS 8.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published September 8, 2026.

Risk summary

HighRemote Code Execution
8.8
CVSS v3 base
1.0%
EPSS: chance of exploitation in 30 days
High
Severity
Important
Microsoft's rating
No
In CISA KEV

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

How to fix it

Microsoft lists 1 affected product and the update that fixes each:

What Microsoft changed

Details

Weakness
CWE-94: Improper Control of Generation of Code ('Code Injection')
Publicly disclosed (Microsoft)
No
Exploited (Microsoft)
No
Known exploited (CISA KEV)
Not listed
Published
September 8, 2026
Last revised
September 8, 2026

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.