[Vulnerability Alert] Two Major Security Vulnerabilities Found in Microsoft SharePoint Server

• Subject: [Vulnerability Alert] Two Major Security Vulnerabilities Found in Microsoft SharePoint Server

• Content:
  • Forwarded from Taiwan Computer Network Emergency Response Team/Coordination Center TWCERTCC-200-202510-00000008
  • Microsoft SharePoint Server is an enterprise-grade collaboration platform that provides functions such as document management and team collaboration, serving as a core platform for enterprise information integration.
  • [CVE-2025-59228, CVSS: 8.8] This is an Improper Input Validation vulnerability that allows an authenticated attacker to execute code over the network.
  • [CVE-2025-59237, CVSS: 8.8] This is a Deserialization of Untrusted Data vulnerability that allows an authenticated attacker to execute code over the network.
• Affected Platforms:
  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Server Subscription Edition
• Recommended Action:
  • Please apply the patch according to the solutions released on the official website:
  • [CVE-2025-59228]
  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59228
  • [CVE-2025-59237]
  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59237
• References:
  • https://www.twcert.org.tw/tw/cp-169-10446-f9e42-1.html

Computer and Communications Center
Network Systems Group