Office Online Server
Microsoft- Software type
- —
- Catalog vulnerabilities
- 155
Severity across 124 analyzed records
Verify to analyze this security profile
en
Severity across 124 analyzed records
Verify to analyze this security profile
As of 09/12/2026, within CyStack's analyzed data, Office Online Server has 62 security vulnerabilities published in the last 90 days. Of these, 46 are rated High or Critical. None of these vulnerabilities is listed in the CISA KEV catalog. CyStack recommends that organizations and individual users remediate applicable vulnerabilities as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Office Online Server and determine which vulnerabilities affect that version.
| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-81956Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published09/08/2026 | SeverityHigh |
CVE-2026-81401Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published09/08/2026 | SeverityMedium |
CVE-2026-81390Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published09/08/2026 | SeverityMedium |
CVE-2026-81947Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published09/08/2026 | SeverityHigh |
CVE-2026-68817Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68814Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68812Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68805Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68804Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68803Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68801Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68799Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityMedium |
CVE-2026-68797Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityMedium |
CVE-2026-70328Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityMedium |
CVE-2026-70327Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityMedium |
CVE-2026-68816Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68815Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68811Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68810Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68808Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityMedium |
CVE-2026-68806Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68807Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68802Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityMedium |
CVE-2026-68800Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68796Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68795Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68794Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-68793Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-65807Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published08/11/2026 | SeverityHigh |
CVE-2026-55949Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55947Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55898Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-54131Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55131Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55122Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55053Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55137Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55058Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55037Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55054Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-55044Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55036Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55141Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55136Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55138Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-55041Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55039Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55029Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55048Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55031Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55025Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55046Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-50408Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-55024Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-48580Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-47642Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-58618Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55948Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-55899Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-54988Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-50678Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityMedium |
CVE-2026-50675Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published07/14/2026 | SeverityHigh |
CVE-2026-45455Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityLow |
CVE-2026-44822Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityHigh |
CVE-2026-44823Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityHigh |
CVE-2026-44820Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityHigh |
CVE-2026-44818Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityHigh |
CVE-2026-44817Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityHigh |
CVE-2026-45469Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published06/09/2026 | SeverityHigh |
CVE-2026-40362Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published05/12/2026 | SeverityHigh |
CVE-2026-40359Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published05/12/2026 | SeverityHigh |
CVE-2026-40360Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published05/12/2026 | SeverityHigh |
CVE-2026-32199Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published04/14/2026 | SeverityHigh |
CVE-2026-32198Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published04/14/2026 | SeverityHigh |
CVE-2026-32197Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published04/14/2026 | SeverityHigh |
CVE-2026-32189Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published04/14/2026 | SeverityHigh |
CVE-2026-32188Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published04/14/2026 | SeverityHigh |
CVE-2026-26109Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published03/10/2026 | SeverityHigh |
CVE-2026-26108Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published03/10/2026 | SeverityHigh |
CVE-2026-26107Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published03/10/2026 | SeverityHigh |
CVE-2026-26112Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published03/10/2026 | SeverityHigh |
CVE-2026-21261Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published02/10/2026 | SeverityMedium |
CVE-2026-21258Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published02/10/2026 | SeverityMedium |
CVE-2026-21259Microsoft Excel Elevation of Privilege Vulnerability | Exploitation statusNot known exploited | FixYes | Published02/10/2026 | SeverityHigh |
CVE-2026-20957Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published01/13/2026 | SeverityHigh |
CVE-2026-20950Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published01/13/2026 | SeverityHigh |
CVE-2026-20955Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published01/13/2026 | SeverityHigh |
CVE-2025-62560Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published12/09/2025 | SeverityHigh |
CVE-2025-62556Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published12/09/2025 | SeverityHigh |
CVE-2025-62564Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published12/09/2025 | SeverityHigh |
CVE-2025-62563Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published12/09/2025 | SeverityHigh |
CVE-2025-62561Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published12/09/2025 | SeverityHigh |
CVE-2025-62203Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published11/11/2025 | SeverityHigh |
CVE-2025-62202Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published11/11/2025 | SeverityHigh |
CVE-2025-62201Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published11/11/2025 | SeverityHigh |
CVE-2025-62200Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published11/11/2025 | SeverityHigh |
CVE-2025-60727Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published11/11/2025 | SeverityHigh |
CVE-2025-60726Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published11/11/2025 | SeverityHigh |
CVE-2025-59232Microsoft Excel Information Disclosure Vulnerability | Exploitation statusNot known exploited | FixYes | Published10/14/2025 | SeverityHigh |
CVE-2025-59225Microsoft Excel Remote Code Execution Vulnerability | Exploitation statusNot known exploited | FixYes | Published10/14/2025 | SeverityHigh |
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