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Microsoft Vulnerability Tracker

Microsoft Vulnerability Tracker

Category: Office

Reprompt attack exploits Microsoft Copilot for data theft

January 15, 2026

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Read More… from Reprompt attack exploits Microsoft Copilot for data theft

Posted in Office, Product

Microsoft Patch Tuesday addresses 112 defects, including one actively exploited zero-day

January 13, 2026

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Read More… from Microsoft Patch Tuesday addresses 112 defects, including one actively exploited zero-day

Posted in Office, Product, Windows

CISA Flags Microsoft Office and HPE OneView Bugs as Actively Exploited

January 8, 2026

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Read More… from CISA Flags Microsoft Office and HPE OneView Bugs as Actively Exploited

Posted in Office, Product

Microsoft Outlook Vulnerability Let Attackers Execute Malicious Code Remotely

December 10, 2025

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Read More… from Microsoft Outlook Vulnerability Let Attackers Execute Malicious Code Remotely

Posted in Office, Product

Microsoft’s last Patch Tuesday of 2025 addresses 57 defects, including one zero-day

December 9, 2025

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Read More… from Microsoft’s last Patch Tuesday of 2025 addresses 57 defects, including one zero-day

Posted in Azure, Office, Product, Windows

PoC Exploit Released for Critical Outlook 0-Click Remote Code Execution Vulnerability

December 1, 2025

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Read More… from PoC Exploit Released for Critical Outlook 0-Click Remote Code Execution Vulnerability

Posted in Office, Product

Microsoft Teams Guest Chat Vulnerability Exposes Users to Malware Attacks

November 27, 2025

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Read More… from Microsoft Teams Guest Chat Vulnerability Exposes Users to Malware Attacks

Posted in Office, Product

Microsoft Patch Tuesday addresses 63 defects, including one actively exploited zero-day 

November 11, 2025

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Read More… from Microsoft Patch Tuesday addresses 63 defects, including one actively exploited zero-day 

Posted in Azure, Office, Product, Windows

New Whisper Leak Toolkit Exposes User Prompts to Popular AI Agents within Encrypted Traffic

November 9, 2025

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Read More… from New Whisper Leak Toolkit Exposes User Prompts to Popular AI Agents within Encrypted Traffic

Posted in Office, Product

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

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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.