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excel parsing

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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.
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    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
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