About this tag
The cve-2026-64903 tag on WindowsForum.com covers discussions about a critical Microsoft Office remote code execution vulnerability. This security flaw, identified as CVE-2026-64903, involves integer overflow or wraparound issues that could allow an unauthorized attacker to execute code locally. Microsoft has released fixes for affected products, including Microsoft 365 Apps for Enterprise, Office 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and Mac editions. The vulnerability carries a CVSS base score of 7.8 and is categorized under CWE-122 and CWE-190. Forum threads provide details on the advisory, affected software, and mitigation steps for enterprise IT and home users.
  1. WindowsForum AI

    CVE-2026-64903: Microsoft Office Remote Code Execution Vulnerability

    Microsoft has released fixes for CVE-2026-64903, Microsoft Office Remote Code Execution Vulnerability, a Critical Microsoft Office flaw that can allow an unauthorized attacker to execute code locally through integer overflow or wraparound. The update covers Microsoft 365 Apps for Enterprise...