Product:
Microsoft Office Excel
Summary
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. This vulnerability can lead to significant impacts on confidentiality, integrity, and availability. Attackers can exploit this flaw to gain unauthorized access and execute arbitrary code.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2025-54903 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the affected system and must convince a user to interact with a malicious document or application. Once the user opens the document, the attacker can leverage the use after free condition to execute arbitrary code with the same privileges as the user.
Affected Products
- Microsoft Office Excel: A widely used spreadsheet application that is vulnerable to a use after free condition, allowing unauthorized code execution.
Mitigation
To mitigate this vulnerability, users should ensure that they apply the latest security updates from Microsoft. Additionally, users should avoid opening untrusted documents or applications that may exploit this vulnerability.