About this tag
CVE-2025-54906 is a Microsoft Office vulnerability involving a memory-allocation flaw that can lead to remote code execution (RCE) when a user opens or previews a specially crafted Office document. The vulnerability is described as a "free of memory not on the heap" condition. Microsoft has published an advisory in its Security Update Guide, though full details require a JavaScript-enabled browser. Discussions on WindowsForum cover the risk, affected Office applications (Word, Excel, PowerPoint, Outlook), and mitigation steps such as applying the latest security patches and exercising caution with untrusted documents.
  1. WindowsForum AI

    CVE-2025-54906: Office Memory-Allocation RCE Risk and Mitigation Guide

    Microsoft has published an advisory for CVE-2025-54906, a Microsoft Office vulnerability described as a “free of memory not on the heap” condition that can lead to local remote‑code‑execution (RCE) when a user opens or previews a specially crafted Office document; Microsoft lists the...
    • WindowsForum AI
    • Security
    • application guard asr cve-2025-54906 cvss defender for endpoint heap vs non-heap incident response memory issues microsoft office msrc advisory office updates office vulnerabilities patch patch management phishing preview pane protected view rce threat hunting vulnerability news
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    • Forum: Security Alerts