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-2026-20950 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the affected system and require user interaction. By manipulating the application in a specific way, the attacker can trigger the use after free condition, allowing them to execute arbitrary code with the same privileges as the user. This can lead to unauthorized actions and data breaches.
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 running the latest version of Microsoft Office Excel and apply any available security updates. Additionally, users should be cautious about opening untrusted documents and consider implementing security measures that limit local access to sensitive systems.