【資安漏洞預警】Microsoft Excel存在高風險安全漏洞(CVE-2026-62870)，請儘速確認並進行修補

【行政公告】

公告單位	圖資處網路系統組
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 Excel存在高風險安全漏洞(CVE-2026-62870)，請儘速確認並進行修補【Security Vulnerability Alert】Microsoft Excel contains a high-risk security vulnerability (CVE-2026-62870), please promptly verify and perform patching
公告內容	轉發國家資安資訊分享與分析中心資安訊息警訊 NISAC-200-202608-00000002 [內容說明] 研究人員發現Microsoft Excel存在使用釋放後記憶體(Use After Free)漏洞(CVE-2026-62870)，未經身分鑑別之遠端攻擊者可利用此漏洞執行任意程式碼，請儘速確認並進行修補。 [影響平台] Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Excel 2016 (32-bit edition) 16.0.5561.1001(不含)以前版本 Microsoft Excel 2016 (64-bit edition) 16.0.5561.1001(不含)以前版本 Microsoft Office 2019 for 32-bit editions Microsoft Office 2019 for 64-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC 2024 for 32-bit editions Microsoft Office LTSC 2024 for 64-bit editions [建議措施] 官方已針對漏洞釋出修復更新，請參考官方說明進行更新，網址如下：https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870 [參考資料] 1. https://nvd.nist.gov/vuln/detail/CVE-2026-62870 2. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870 Forwarded National Information Sharing and Analysis Center Information Security Alert NISAC-200-202608-00000002 [Content Description] Researchers discovered that Microsoft Excel contains a Use After Free vulnerability (CVE-2026-62870). An unauthenticated remote attacker can exploit this vulnerability to execute arbitrary code. Please promptly verify and perform patching. [Impacted Platform] Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Excel 2016 (32-bit edition) versions prior to 16.0.5561.1001 Microsoft Excel 2016 (64-bit edition) versions prior to 16.0.5561.1001 Microsoft Office 2019 for 32-bit editions Microsoft Office 2019 for 64-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC 2024 for 32-bit editions Microsoft Office LTSC 2024 for 64-bit editions [Recommended Actions] The official has released a security update for the vulnerability. Please refer to the official instructions for updates. The URL is as follows: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870 [Reference] 1. https://nvd.nist.gov/vuln/detail/CVE-2026-62870 2. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870
相關訊息	參考資料1 參考資料2
公告時間	2026/8/11 至 2027/2/11	點閱次數	166