Topic: attack vector

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  • Microsoft fixes critical Office zero-day under active attack
    January 28, 2026
    80%

    Microsoft fixes critical Office zero-day under active attack

    Microsoft has urgently patched a critical, actively exploited zero-day vulnerability (CVE-2026-21509) in Office, which allows attackers to bypass security features by tricking users into opening malicious files. While patches are available for Office 2021, LTSC 2021/2024, and Microsoft 365, secur...

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  • Microsoft patches critical Office zero-day under active attack
    January 29, 2026
    75%

    Microsoft patches critical Office zero-day under active attack

    Microsoft has urgently patched a critical, actively exploited Office vulnerability (CVE-2026-21509) that bypasses security features, requiring immediate updates to prevent system compromise. The flaw allows attackers to bypass OLE mitigations by tricking users into opening a malicious file, with ...

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Related Topics

security vulnerability (2) emergency updates (2) threat intelligence (1) security advisory (1) Security Best Practices (1) user interaction (1) mitigation measures (1) proof of concept (1)