CVE-2026-65815: Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
Other sources
Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 9.1.0047.0006
Event History
Frequently Asked Questions
What is the severity of CVE-2026-65815?
The severity of CVE-2026-65815 is rated high with a score of 8.8.
How do I fix CVE-2026-65815?
To mitigate CVE-2026-65815, apply the latest security updates provided by Microsoft for Dynamics 365 On-Premises.
What type of vulnerability is CVE-2026-65815?
CVE-2026-65815 is a remote code execution vulnerability due to deserialization of untrusted data.
Who can exploit CVE-2026-65815?
An authorized attacker with access to the network can exploit CVE-2026-65815 to execute code.
Which software is affected by CVE-2026-65815?
CVE-2026-65815 affects Microsoft Dynamics 365 On-Premises.