SB2025051391 - Multiple vulnerabilities in Microsoft SharePoint Server
Published: May 13, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Deserialization of Untrusted Data (CVE-ID: CVE-2025-30382)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Microsoft SharePoint Server. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Deserialization of Untrusted Data (CVE-ID: CVE-2025-30384)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Microsoft SharePoint Server. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Improper privilege management (CVE-ID: CVE-2025-29976)
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to improper privilege management in Microsoft SharePoint Server. A local user can escalate privileges.
4) Deserialization of Untrusted Data (CVE-ID: CVE-2025-30378)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Microsoft SharePoint Server. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.