CVE-2026-65772 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code remotely via unsafe deserialization in Microsoft Dynamics 365 on-premises.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-65772?
CVE-2026-65772 is a high-severity unsafe deserialization vulnerability in Microsoft Dynamics 365, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Deserialization of untrusted data in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.
Weakness: CWE-502
Which versions are affected by CVE-2026-65772?
It affects 1 product.
Products include Microsoft Dynamics 365.
How do I fix CVE-2026-65772?
No fix has been published for CVE-2026-65772 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-65772 being exploited?
There is no known exploitation of CVE-2026-65772 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Dynamics 365
- CVE-2026-47647 Dynamics 365 Elevation of Privilege Vulnerability
- CVE-2026-42898 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
- CVE-2026-32210 Microsoft Dynamics 365 (online) Spoofing Vulnerability
- CVE-2026-42833 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
- CVE-2024-38182 Microsoft Dynamics 365 Elevation of Privilege Vulnerability
Sources
Also known as GHSA-2vrx-2v3j-84hp.