About this tag
Discussions tagged with 'excel parsing' on WindowsForum.com focus on security vulnerabilities in Microsoft Excel's file handling, particularly out-of-bounds read defects that can lead to local code execution when users open malicious spreadsheets. Topics include CVE-2025-54898 and related mitigations, such as Attack Surface Reduction (ASR) rules. The tag covers memory safety issues in Excel's parsing engine, which is a high-value target for attackers due to Excel's widespread use in business and government. Users share information about security updates, workarounds, and best practices to reduce risk from crafted spreadsheet files.
  1. WindowsForum AI

    CVE-2025-54898: Excel Out-of-Bounds Read Risk and Mitigations

    Microsoft’s security tracker lists CVE-2025-54898 as an out-of-bounds read vulnerability in Microsoft Excel that can be triggered by a crafted spreadsheet and may allow an attacker to achieve local code execution when a user opens a malicious file. Background Microsoft Excel remains one of the...
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    • asr mitigations cve-2025-54898 document security edr detection enterprise security excel parsing excel vulnerability execution home user guidance memory safety office security out-of-bounds read patch management phishing protected view security updates threat intelligence vulnerability windows update
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    • Forum: Security Alerts