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-2025-62553

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: Affected by a use after free vulnerability that allows local code execution.

Mitigation

To mitigate this vulnerability, users should ensure that they are using the latest version of Microsoft Office Excel and apply any available security updates. Additionally, users should avoid opening untrusted documents or applications that could exploit this vulnerability.

References