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Microsoft Vulnerability Tracker

Microsoft Vulnerability Tracker

Category: Office

Hackers Abuse OneDrive.exe via DLL Sideloading to Run Malicious Code

November 5, 2025

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Read More… from Hackers Abuse OneDrive.exe via DLL Sideloading to Run Malicious Code

Posted in Office, Product

Researchers warn of flaws that allow manipulation of Microsoft Teams messages

November 4, 2025

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Read More… from Researchers warn of flaws that allow manipulation of Microsoft Teams messages

Posted in Office, Product

Sneaky Mermaid attack in Microsoft 365 Copilot steals data

October 24, 2025

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Read More… from Sneaky Mermaid attack in Microsoft 365 Copilot steals data

Posted in Office, Product

Sharepoint ToolShell attacks targeted orgs across four continents

October 22, 2025

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Read More… from Sharepoint ToolShell attacks targeted orgs across four continents

Posted in China, Nation-state attack, Office, Product

Microsoft 365 Copilot Vulnerability Enables Attackers to Exfiltrate Sensitive Emails

October 21, 2025

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Read More… from Microsoft 365 Copilot Vulnerability Enables Attackers to Exfiltrate Sensitive Emails

Posted in Office, Product

Microsoft’s Patch Tuesday fixes 175 vulnerabilities, including two actively exploited zero-days

October 14, 2025

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Read More… from Microsoft’s Patch Tuesday fixes 175 vulnerabilities, including two actively exploited zero-days

Posted in Azure, Office, Product, Windows

Microsoft Warns of Hackers Abuse Teams Features and Capabilities to Deliver Malware 

October 7, 2025

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Read More… from Microsoft Warns of Hackers Abuse Teams Features and Capabilities to Deliver Malware 

Posted in Office, Product

Hackers Exploit Weaponized Microsoft Teams Installer to Deploy Oyster Malware

September 29, 2025

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Read More… from Hackers Exploit Weaponized Microsoft Teams Installer to Deploy Oyster Malware

Posted in Office, Product

Microsoft OneDrive Auto-Sync Feature Exposes Enterprise Secrets in SharePoint Online

September 17, 2025

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Read More… from Microsoft OneDrive Auto-Sync Feature Exposes Enterprise Secrets in SharePoint Online

Posted in Office, Product

Microsoft September 2025 Patch Tuesday fixes 81 flaws, two zero-days

September 9, 2025

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Read More… from Microsoft September 2025 Patch Tuesday fixes 81 flaws, two zero-days

Posted in Azure, Office, Product, Windows

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The above compilation of published reports regarding data breaches and cyber attacks targeting Microsoft platforms and products is maintained by NetChoice. NetChoice is dedicated to ensuring free enterprise and free expression can thrive on the Internet securely.