You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
microsoft word security
About this tag
Microsoft Word security content on WindowsForum.com focuses on remote code execution (RCE) vulnerabilities disclosed through Microsoft's Security Update Guide and Patch Tuesday releases. Recurring themes include CVE entries with CVSS local attack vectors that Microsoft still classifies as remote code execution, explaining the distinction between attacker location and exploit execution. Specific vulnerabilities such as CVE-2026-45457, CVE-2026-45643, CVE-2026-45486, CVE-2026-45471, CVE-2026-40364, CVE-2026-35440, CVE-2025-49698, and CVE-2025-47168 are discussed, with emphasis on use-after-free bugs, preview pane attack vectors, and the importance of fast patching for enterprise defenders. The tag covers threat analysis, patch guidance, and risk assessment for Word vulnerabilities.
Microsoft has published CVE-2026-45457 as a Microsoft Word remote code execution vulnerability in the Microsoft Security Response Center’s Security Update Guide, putting another Office document-handling flaw on the June 2026 patch radar for Windows users, administrators, and security teams. The...
Microsoft describes CVE-2026-45643 as a Microsoft Word Remote Code Execution vulnerability even though its CVSS attack vector is local because “remote” identifies the attacker’s position, while “local” identifies where the malicious code must run to trigger exploitation. The apparent...
Microsoft classifies CVE-2026-45486 as a Microsoft Word Remote Code Execution vulnerability even though its CVSS attack vector is Local because the exploit code runs on the victim’s machine after a malicious document or content path reaches the user, while the attacker may be remote from that...
Microsoft classifies CVE-2026-45471 as a Microsoft Word remote code execution vulnerability even though its CVSS attack vector is local, because “remote” describes where the attacker may be sitting, while AV:L describes where the vulnerable code must actually be triggered: on the victim’s...
CVE-2026-40364 is a critical Microsoft Word remote code execution vulnerability disclosed by Microsoft on May 12, 2026, affecting supported Microsoft Word, Office, Microsoft 365 Apps, and Office LTSC editions on Windows and Mac. Microsoft says an unauthorized attacker can exploit a...
Microsoft published CVE-2026-35440 on May 12, 2026, as a Microsoft Word information disclosure vulnerability in the Security Update Guide, placing it inside the May Patch Tuesday stream of Office fixes rather than a standalone emergency advisory. The interesting part is not that Word has another...
A critical security vulnerability, identified as CVE-2025-49698, has been discovered in Microsoft Word, posing significant risks to users worldwide. This flaw, classified as a "use-after-free" vulnerability, allows unauthorized attackers to execute arbitrary code on affected systems, potentially...
An unexpected and critical vulnerability has emerged within Microsoft Word, shaking both enterprise and consumer users of the world’s most dominant productivity suite. Identified as CVE-2025-47168, this remote code execution (RCE) vulnerability stems from a classic yet devastating software flaw...