HIGH Microsoft Corporation Vulnerability Alert

Product:

Microsoft Office

Summary

Use after free in Microsoft Office 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 control over affected systems.

Details

Severity Base Score CVE
HIGH 8.4 CVE-2026-20953

Exploitation

To exploit this vulnerability, an attacker must have local access to the affected system. By manipulating the memory management of Microsoft Office, the attacker can trigger a use after free condition, allowing them to execute arbitrary code. This requires low complexity and does not necessitate user interaction, making it a serious threat.

Affected Products

  • Microsoft Office: A widely used suite of productivity applications that may be vulnerable to local code execution due to memory management issues.

Mitigation

To mitigate this vulnerability, users should ensure that they are running the latest version of Microsoft Office with all security updates applied. Regularly checking for updates and applying patches can help protect against potential exploits.

References