Product:
Microsoft Office SharePoint
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. This vulnerability can lead to significant impacts on confidentiality, integrity, and availability. Attackers can exploit this flaw to gain unauthorized access and execute malicious code.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 8 | CVE-2026-40368 |
Exploitation
To exploit this vulnerability, an attacker must have authorized access to the affected Microsoft Office SharePoint environment. They can then send specially crafted requests that leverage the deserialization flaw, allowing them to execute arbitrary code on the server. This requires low privileges and user interaction, making it a significant risk for organizations using the software.
Affected Products
- Microsoft Office SharePoint: A web-based collaboration platform that integrates with Microsoft Office, allowing users to create, manage, and share content.
Mitigation
To mitigate this vulnerability, organizations should apply the latest security updates provided by Microsoft. Additionally, implementing strict access controls and monitoring network traffic can help reduce the risk of exploitation. Regular security assessments and user training on recognizing suspicious activities are also recommended.