CVE-2025-24082: 
vulnerability analysis and mitigation

CVE-2025-24082 is a use-after-free vulnerability discovered in Microsoft Office Excel. The vulnerability was disclosed on March 11, 2025, and affects Microsoft Excel 2016 and Office Online Server installations. This security flaw allows an unauthorized attacker to execute code locally on affected systems (NVD, CVE).

The vulnerability is classified as a use-after-free (CWE-416) security flaw. Microsoft has assigned it a CVSS v3.1 base score of 7.8 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. This scoring indicates that the vulnerability requires local access and user interaction, but no privileges, while potentially impacting confidentiality, integrity, and availability at high levels (NVD).

If successfully exploited, this vulnerability allows an unauthorized attacker to execute code locally on the affected system, potentially leading to full system compromise with the same privileges as the logged-in user (CVE).

Microsoft has released security updates to address this vulnerability. Users can obtain the fix through multiple channels: Microsoft Update, Microsoft Update Catalog, or Microsoft Download Center. For Excel 2016, the security update KB5002696 is available, while Office Online Server users should apply KB5002690 (Excel Update, Server Update).