Advisories · Technology

Microsoft Office Online Server.

Every CVE that names Microsoft Office Online Server among its affected products, newest first. Vendors and products are as the CNA wrote them; check the affected versions on each record.

CVE-2026-26109 CVE record

CVSS 8.4 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Mar 2026
CVE-2026-26108 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Mar 2026
CVE-2026-26107 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Mar 2026
CVE-2026-26112 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Mar 2026
CVE-2026-21261 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Feb 2026
CVE-2026-21258 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
- CWE-20
Not analysed yet 10 Feb 2026
CVE-2026-21259 CVE record

CVSS 7.8 High

Microsoft Excel Elevation of Privilege Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Feb 2026
CVE-2026-20957 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 Jan 2026
CVE-2026-20950 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 Jan 2026
CVE-2026-20955 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Office 2019
- Memory corruption
Not analysed yet 13 Jan 2026
CVE-2025-62560 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
- CWE-126
Not analysed yet 9 Dec 2025
CVE-2025-62556 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Dec 2025
CVE-2025-62564 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Dec 2025
CVE-2025-62563 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Dec 2025
CVE-2025-62561 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Dec 2025
CVE-2025-62203 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Nov 2025
CVE-2025-62202 CVE record

CVSS 7.1 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Nov 2025
CVE-2025-62201 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Nov 2025
CVE-2025-62200 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Nov 2025
CVE-2025-60727 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Nov 2025
CVE-2025-60726 CVE record

CVSS 7.1 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Nov 2025
CVE-2025-59232 CVE record

CVSS 7.1 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Access 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59225 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59224 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59223 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59236 CVE record

CVSS 8.4 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Office 2019
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59235 CVE record

CVSS 7.1 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Access 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59233 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-59231 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Oct 2025
CVE-2025-54900 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Sept 2025
CVE-2025-54904 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Sept 2025
CVE-2025-54903 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Sept 2025
CVE-2025-54902 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Sept 2025
CVE-2025-54898 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Sept 2025
CVE-2025-54896 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Sept 2025
CVE-2025-53739 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 12 Aug 2025
CVE-2025-53737 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 12 Aug 2025
CVE-2025-53735 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 12 Aug 2025
CVE-2025-53759 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Office 2019
- Memory corruption
Not analysed yet 12 Aug 2025
CVE-2025-53741 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 12 Aug 2025
CVE-2025-49697 CVE record

CVSS 8.4 High

Microsoft Office Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Office 2016
- Memory corruption
Not analysed yet 8 Jul 2025
CVE-2025-49711 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 8 Jul 2025
CVE-2025-48812 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 8 Jul 2025
CVE-2025-47165 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 10 Jun 2025
CVE-2025-30383 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-30381 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-30379 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-30376 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-30375 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-29979 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Office 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-29977 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 13 May 2025
CVE-2025-26642 CVE record

CVSS 7.8 High

Microsoft Office Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Access 2016
- Memory corruption
Not analysed yet 8 Apr 2025
CVE-2025-27751 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 8 Apr 2025
CVE-2025-27746 CVE record

CVSS 7.8 High

Microsoft Office Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Office 2016
- Memory corruption
Not analysed yet 8 Apr 2025
CVE-2025-24075 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Mar 2025
CVE-2025-24082 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Mar 2025
CVE-2025-24081 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Mar 2025
CVE-2025-21394 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Feb 2025
CVE-2025-21390 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Feb 2025
CVE-2025-21387 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Feb 2025