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Vulnerability DatabaseCVE-2025-30376
CVE-2025-30376:
vulnerability analysis and mitigation
Overview
A heap-based buffer overflow vulnerability was identified in Microsoft Office Excel (CVE-2025-30376), discovered and disclosed on May 13, 2025. The vulnerability affects multiple versions of Microsoft products including Microsoft Excel 2016, Office 2019, Microsoft 365 Apps Enterprise, and Office Long Term Servicing Channel 2021 and 2024 (NVD).
Technical details
The vulnerability is classified as a heap-based buffer overflow (CWE-122) and out-of-bounds write/read (CWE-787, CWE-125) issue. Microsoft has assigned it a CVSS v3.1 base score of 7.8 (High), with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating local attack vector, low attack complexity, no privileges required, and user interaction required (NVD).
Impact
If successfully exploited, this vulnerability allows an unauthorized attacker to execute code locally on the affected system, potentially leading to complete compromise of the system's confidentiality, integrity, and availability as indicated by the high (H) impact scores in the CVSS metrics (NVD).
Additional resources
Source: This report was generated using AI
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