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 without requiring any user interaction.

Details

Severity Base Score CVE
HIGH 8.4 CVE-2025-59236

Exploitation

To exploit this vulnerability, an attacker must have local access to the affected system. By manipulating the memory management of Microsoft Office Excel, the attacker can trigger the use after free condition, allowing them to execute arbitrary code with the same privileges as the user running the application. This can lead to unauthorized access to sensitive data or system control.

Affected Products

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

Mitigation

To mitigate this vulnerability, users should ensure that they are running the latest version of Microsoft Office Excel with all security updates applied. Regularly updating software and following best security practices can help reduce the risk of exploitation.

References