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-2026-68816 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 Aug 2026
CVE-2026-68815 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 Aug 2026
CVE-2026-68811 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 Aug 2026
CVE-2026-68810 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 Aug 2026
CVE-2026-68808 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Aug 2026
CVE-2026-68806 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 Aug 2026
CVE-2026-68802 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Aug 2026
CVE-2026-68796 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 Aug 2026
CVE-2026-68795 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 Aug 2026
CVE-2026-68794 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 Aug 2026
CVE-2026-68793 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 Aug 2026
CVE-2026-65807 CVE record

CVSS 8.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 11 Aug 2026
CVE-2026-55949 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 Jul 2026
CVE-2026-55947 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 Jul 2026
CVE-2026-55898 CVE record

CVSS 6.1 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-54131 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 14 Jul 2026
CVE-2026-55131 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 Jul 2026
CVE-2026-55122 CVE record

CVSS 7.1 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-55053 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 Jul 2026
CVE-2026-55137 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 Jul 2026
CVE-2026-55058 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 Jul 2026
CVE-2026-55037 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 Jul 2026
CVE-2026-55054 CVE record

CVSS 6.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-55044 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 Jul 2026
CVE-2026-55036 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- CWE-126
Not analysed yet 14 Jul 2026
CVE-2026-55141 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 Jul 2026
CVE-2026-55136 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 Jul 2026
CVE-2026-55138 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-55041 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 Jul 2026
CVE-2026-55039 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 Jul 2026
CVE-2026-55029 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 Jul 2026
CVE-2026-55048 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 Jul 2026
CVE-2026-55031 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 Jul 2026
CVE-2026-55025 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 Jul 2026
CVE-2026-55046 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-50408 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-55024 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 Jul 2026
CVE-2026-48580 CVE record

CVSS 5.5 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-47642 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 14 Jul 2026
CVE-2026-58618 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 Jul 2026
CVE-2026-55948 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 Jul 2026
CVE-2026-55899 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
- CWE-20
Not analysed yet 14 Jul 2026
CVE-2026-54988 CVE record

CVSS 6.1 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-50678 CVE record

CVSS 6.6 Medium

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Jul 2026
CVE-2026-50675 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 Jul 2026
CVE-2026-45455 CVE record

CVSS 3.3 Low

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Jun 2026
CVE-2026-44822 CVE record

CVSS 8.2 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 9 Jun 2026
CVE-2026-44823 CVE record

CVSS 7.8 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
- CWE-197
Not analysed yet 9 Jun 2026
CVE-2026-44820 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 Jun 2026
CVE-2026-44818 CVE record

CVSS 7.0 High

Microsoft Excel Remote Code Execution Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Race condition
Not analysed yet 9 Jun 2026
CVE-2026-44817 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 Jun 2026
CVE-2026-45469 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 Jun 2026
CVE-2026-40362 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 May 2026
CVE-2026-40359 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 May 2026
CVE-2026-40360 CVE record

CVSS 7.8 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 12 May 2026
CVE-2026-32199 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 Apr 2026
CVE-2026-32198 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 Apr 2026
CVE-2026-32197 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 Apr 2026
CVE-2026-32189 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 Apr 2026
CVE-2026-32188 CVE record

CVSS 7.1 High

Microsoft Excel Information Disclosure Vulnerability
- Microsoft 365 Apps for Enterprise
- Microsoft Excel 2016
- Memory corruption
Not analysed yet 14 Apr 2026