Authenticated code execution via BDC model deserialization
Published Jul 9, 2024 · Updated Feb 10, 2026
Deserialization in affected Microsoft SharePoint Server builds allows remote authenticated users with Site Owner rights to execute arbitrary code. The Business Data Connectivity import path accepts a crafted BDCMetadata.bdcm model containing a .NET delegate payload, and client.svc ProcessQuery deserializes the model and invokes System.Diagnostics.Process.Start. A Site Owner account must upload and invoke the model; successful exploitation runs commands in the SharePoint service context.
Summary
What happened
Deserialization in affected Microsoft SharePoint Server builds allows remote authenticated users with Site Owner rights to execute arbitrary code. The Business Data Connectivity import path accepts a crafted BDCMetadata.bdcm model containing a .NET delegate payload, and client.svc ProcessQuery deserializes the model and invokes System.Diagnostics.Process.Start. A Site Owner account must upload and invoke the model; successful exploitation runs commands in the SharePoint service context.
The record
- CVE
- CVE-2024-38094
- Published
- Jul 9, 2024
- Updated
- Feb 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Enterprise Server 2016
- Classifications
- CWE-502, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 9, 2024CVE publishedPublication date reported by the CVE source.
- Oct 22, 2024Exploitation reportedCISA Known Exploited Vulnerabilities listing
- Oct 22, 2024Exploitation reportedRansomware campaign use recorded by CISA
- Feb 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.0.5456.1000
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- MS-SharePoint-July-Patch-RCE-PoCweaponized · observed in use
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
- SharePoint compromise using the public exploit workflowreported exploitation
- Ransomware campaign use recorded by CISAransomware
Technologies
Your stack
See the directory against your own environment.
Your stack
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