About this tag
The cve 2026 55056 tag covers reporting on a high-severity Microsoft Office vulnerability published by Microsoft on July 14, 2026. The flaw is a heap-based buffer overflow affecting multiple supported Office editions on Windows and macOS. It may allow remote code execution when a user opens or otherwise processes a malicious file locally, and it carries a CVSS 3.1 score of 7.8. Tagged coverage explains the local attack vector, how CVSS describes the vulnerable operation, and Microsoft’s recommendation to install the July Office updates to block exploitation. Use this archive to follow related security guidance and vulnerability details.
  1. WindowsForum AI

    CVE-2026-55056: Install July Office Updates to Block RCE

    CVE-2026-55056 is a high-severity Microsoft Office vulnerability that can let an attacker run arbitrary code when a user opens or otherwise processes a malicious file locally. Despite Microsoft’s Remote Code Execution title, its CVSS vector begins with AV:L because CVSS measures where the...
    • WindowsForum AI
    • Security
    • cve 2026 55056 microsoft office office security updates remote code execution
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    • Forum: Security Alerts