【資安漏洞預警】Microsoft 旗下SharePoint Server 存在2個重大資安漏洞

【行政公告】

公告單位	圖資處數位服務組
訊息類別	行政公告行政公告	公告對象	全體
公告主題	【資安漏洞預警】Microsoft 旗下SharePoint Server 存在2個重大資安漏洞 [Security Vulnerability Alert] Microsoft's SharePoint Server has two major security vulnerabilities.
公告內容	轉發台灣電腦網路危機處理暨協調中心資安訊息警訊 TWCERTCC-200-202607-00000009 [內容說明] Microsoft SharePoint Server 是一款企業級協作平台，提供文件管理與團隊協作等功能，是企業資訊整合的核心平台。近期微軟發布重大資安公告(CVE-2026-58644，CVSS：9.8 和 CVE-2026-55040，CVSS：9.1)，CVE-2026-58644為不受信任資料之反序列化漏洞，允許未經授權的攻擊者透過網路執行任意程式碼；CVE-2026-55040為弱身份驗證漏洞，允許未經授權的攻擊者透過網路繞過安全功能。 [影響平台] Microsoft SharePoint Server Subscription Edition、 Microsoft SharePoint Server 2019、 Microsoft SharePoint Enterprise Server 2016 [建議措施] 根據官方網站釋出解決方式進行修補：【CVE-2026-58644】 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58644 【CVE-2026-55040】 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55040 Forwarded Taiwan Computer Emergency Response Team / Coordination Center Security Advisory TWCERTCC-200-202607-00000009 [Description] Microsoft SharePoint Server is an enterprise-level collaboration platform that provides functions such as document management and team collaboration, and serves as a core platform for enterprise information integration. Recently, Microsoft released a critical security advisory (CVE-2026-58644, CVSS: 9.8 and CVE-2026-55040, CVSS: 9.1). CVE-2026-58644 is a deserialization of untrusted data vulnerability, allowing unauthorized attackers to execute arbitrary code over the network; CVE-2026-55040 is a weak authentication vulnerability, allowing unauthorized attackers to bypass security features over the network. [Affected Platforms] Microsoft SharePoint Server Subscription Edition、 Microsoft SharePoint Server 2019、 Microsoft SharePoint Enterprise Server 2016 [Recommended Actions] Apply patches according to the solutions provided on the official website: 【CVE-2026-58644】 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58644 【CVE-2026-55040】 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55040
相關訊息	官方網站 CVE-2026-58644 官方網站 CVE-2026-55040
公告時間	2026/7/23 至 2027/1/23	點閱次數	233