CVE-2025-30382 Microsoft SharePoint Server Remote Code Execution Vulnerability
An unauthorized attacker can execute code locally via deserialization of untrusted data in Microsoft SharePoint Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-30382?
CVE-2025-30382 is a high-severity unsafe deserialization vulnerability in Microsoft Sharepoint Server, published on 13 May 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.
Weakness: CWE-502
Which versions are affected by CVE-2025-30382?
It affects 1 product.
Products include Microsoft Sharepoint Server.
How do I fix CVE-2025-30382?
No fix has been published for CVE-2025-30382 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-2025-30382 being exploited?
There is no known exploitation of CVE-2025-30382 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Server
- CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
- CVE-2026-58644 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2026-20963 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2025-53770 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2023-29357 Microsoft SharePoint Server Privilege Escalation
Sources
Also known as GHSA-6mmm-6mq6-xv92.