VendorsMicrosoftoffice_online_serverany version
Vulnerabilities

Microsoft Office Online Server any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

216CVEs
CVE-2021-40472
Microsoft Excel Information Disclosure Vulnerability
Published 2021-10-13 · Modified
5.5EPSS 0.007
CVE-2026-21258
Microsoft Excel Information Disclosure Vulnerability
Published 2026-02-10 · Analyzed
5.5EPSS 0.006
CVE-2026-21261
Microsoft Excel Information Disclosure Vulnerability
Published 2026-02-10 · Analyzed
5.5EPSS 0.006
CVE-2026-55124
Microsoft Word Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.006
CVE-2026-55050
Microsoft Word Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.006
CVE-2026-55047
Microsoft Office Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.006
CVE-2026-55046
Microsoft Excel Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.005
CVE-2026-55138
Microsoft Excel Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.005
CVE-2026-81390
Microsoft Excel Information Disclosure Vulnerability
Published 2026-09-08 · Analyzed
5.5EPSS 0.005
CVE-2026-81401
Microsoft Excel Information Disclosure Vulnerability
Published 2026-09-08 · Analyzed
5.5EPSS 0.005
CVE-2026-48580
Microsoft Excel Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.005
CVE-2026-50408
Microsoft Excel Information Disclosure Vulnerability
Published 2026-07-14 · Analyzed
5.5EPSS 0.005
CVE-2025-48812
Microsoft Excel Information Disclosure Vulnerability
Published 2025-07-08 · Analyzed
5.5EPSS 0.005
CVE-2017-0195
Microsoft Excel Services on Microsoft SharePoint Server 2010 SP1 and SP2, Microsoft Excel Web Apps 2010 SP2, Microsoft Office Web Apps 2010 SP2, Microsoft Office Web Apps Server 2013 SP1 and Office Online Server allows remote attackers to perform cross-site scripting and run script with local user privileges via a crafted request, aka "Microsoft Office XSS Elevation of Privilege Vulnerability."
Published 2017-04-12 · Modified
5.4EPSS 0.038
CVE-2021-34451
Microsoft Office Online Server Spoofing Vulnerability
Published 2021-07-16 · Modified
5.3EPSS 0.018
CVE-2026-45455
Microsoft Excel Information Disclosure Vulnerability
Published 2026-06-09 · Modified
4.3EPSS 0.008
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