Product · Microsoft

Office Online Server

256 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

256 results · Feed

High 8.4

CVE-2025-21362

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024

Jan 14, 2025
High 8.4

CVE-2025-21354

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC 2024

Jan 14, 2025
High 7.8

CVE-2024-30042

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office LTSC for Mac 2021

May 14, 2024
High 7.8

CVE-2021-43256

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office LTSC 2021 Microsoft Office 2019

Dec 15, 2021
High 7.8

CVE-2021-31939 EPSS 13%

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office 2019 Office Online Server

Jun 8, 2021
High 7.8

CVE-2021-24069

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office 2019 Office Online Server

Feb 25, 2021
High 7.8

CVE-2021-24070

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office 2019 Office Online Server

Feb 25, 2021
High 7.8

CVE-2021-24067

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office 2019 Office Online Server

Feb 25, 2021
High 7.8

CVE-2020-17123

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Excel Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office 2019 Office Online Server

Dec 9, 2020
Unscored —

CVE-2020-1495

Microsoft Excel Remote Code Execution Vulnerability

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the…

Microsoft Microsoft 365 Apps for Enterprise Microsoft Office 2019 Office Online Server

Aug 17, 2020
Unscored —

CVE-2020-0695

A spoofing vulnerability exists when Office Online Server does not validate origin in cross-origin communications corre…

Microsoft Office Online Server

Feb 11, 2020
Unscored —

CVE-2020-0647

A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications correctly, a…

Microsoft Office Online Server

Jan 14, 2020
Unscored —

CVE-2019-1447

A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers cor…

Microsoft Office Online Server

Nov 12, 2019
Unscored —

CVE-2019-1445

A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers cor…

Microsoft Office Online Server

Nov 12, 2019
Unscored —

CVE-2019-1331 EPSS 20%

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle obj…

Microsoft Office Online Server Microsoft Office Microsoft SharePoint Enterprise Server

Oct 10, 2019
Unscored —

CVE-2018-8628 EPSS 16%

A remote code execution vulnerability exists in Microsoft PowerPoint software when the software fails to properly handl…

Microsoft Office Online Server Microsoft Office Microsoft SharePoint Server

Dec 12, 2018