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How CVE-2025-29807 Works
Microsoft Dataverse fails to properly validate serialized data during deserialization, allowing an authenticated attacker to send crafted payloads. When the application processes this malicious data, it triggers arbitrary code execution under the context of the service account. The vulnerability stems from insecure .NET deserialization practices, where attacker-controlled data is processed without proper checks, leading to remote command execution.
DailyCVE Form
Platform: Microsoft Dataverse
Version: Pre-9.2.2307.1
Vulnerability: Deserialization RCE
Severity: Critical
Date: 07/03/2025
Prediction: Patch by 08/15/2025
What Undercode Say
Analytics:
Get-Service -Name "Dataverse" | Format-List -Property Status, DisplayName
curl -X POST -H "Content-Type: application/json" --data-binary @malicious_payload.json https://target-dataverse/api
How Exploit:
- Craft malicious serialized payload using ysoserial.net.
- Send payload via authenticated API call.
- Trigger deserialization via Dataverse workflow.
Protection from this CVE:
- Apply Microsoftโs security update.
- Restrict Dataverse API access.
- Implement input validation.
Impact:
- Remote code execution.
- Full system compromise.
- Data exfiltration.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
