CVE-2025-21362
vulnerability analysis and mitigation

Overview

Microsoft Excel Remote Code Execution Vulnerability (CVE-2025-21362) was disclosed on January 14, 2025. This vulnerability affects various versions of Microsoft Excel and Microsoft Office products, including Excel 2016, Office 2019, Office 2021, and Microsoft 365 Apps (NVD).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 8.4 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Microsoft has classified this as a Use After Free (CWE-416) vulnerability (NVD).

Impact

If successfully exploited, this vulnerability could allow an attacker to execute arbitrary code with the same privileges as the compromised user. Given the CVSS metrics, the vulnerability can result in high impacts to confidentiality, integrity, and availability of the affected system (NVD).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability. Users can obtain the update through Microsoft Update, Microsoft Update Catalog, or Microsoft Download Center. For Excel 2016 users, specific security update KB5002673 is available for both 32-bit and 64-bit versions (Microsoft Support).

Additional resources


SourceThis report was generated using AI

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