CVE-2026-58644—Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

PUBLISHEDvulnerability record
2026-07-16 · last modified July 16, 2026

Metadata

CVE ID：
CVE-2026-58644
项目：
Microsoft
产品：
SharePoint
添加日期：
2026-07-16
到期日：
2026-07-19
最后更新：
July 16, 2026

漏洞名称

Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

描述

Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network.

已知用于勒索软件活动吗？

勒索软件状态：
Unknown

采集行动

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

其他说明

  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58644
  • BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
  • Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
  • https://nvd.nist.gov/vuln/detail/CVE-2026-58644

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