Product:
Windows Hyper-V
Summary
Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally. This vulnerability can lead to significant security risks, including unauthorized access to sensitive data and system resources. It is crucial for users to be aware of this issue to protect their systems effectively.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 8.8 | CVE-2026-21255 |
Exploitation
To exploit this vulnerability, an attacker with local access can manipulate the access control mechanisms within Windows Hyper-V. By doing so, they can bypass security features that are designed to protect the system, potentially leading to unauthorized actions and access to sensitive information.
Affected Products
- Windows Hyper-V: A virtualization technology that allows users to create and manage virtual machines on Windows servers.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Users should also review their access control settings and ensure that only authorized personnel have local access to systems running Windows Hyper-V.