Product:
Windows Virtualization-Based Security
Summary
Heap-based buffer overflow in Windows Virtualization-Based Security Enclave allows an authorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks if exploited. Attackers with the necessary privileges can manipulate the system to gain unauthorized access.
Details
| Severity | Base Score | CVE |
|---|---|---|
| MEDIUM | 6.7 | CVE-2026-20876 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system and the necessary privileges. By leveraging the heap-based buffer overflow, the attacker can execute arbitrary code within the context of the VBS Enclave, potentially leading to privilege escalation and unauthorized access to sensitive information.
Affected Products
- Windows Virtualization-Based Security Enclave: A security feature that isolates sensitive processes to protect against attacks.
Mitigation
To mitigate this vulnerability, it is essential to apply the latest security updates provided by Microsoft. Regularly updating systems and monitoring for unusual activity can help reduce the risk of exploitation. Additionally, limiting local access to trusted users can further enhance security.