HIGH Microsoft Corporation Vulnerability Alert

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-2025-62563

Exploitation

To exploit this vulnerability, an attacker must have local access to the affected system and must interact with the application. By manipulating the memory management of Microsoft Office Excel, the attacker can trigger the use after free condition, allowing them to execute malicious code with the same privileges as the user running the application.

Affected Products

  • Microsoft Office Excel: A widely used spreadsheet application that is vulnerable to local code execution due to a use after free condition.

Mitigation

To mitigate this vulnerability, users should ensure that they are running the latest version of Microsoft Office Excel and apply any available security updates. Additionally, limiting local access to systems running the application can help reduce the risk of exploitation.

References