Product:
Windows Kernel
Summary
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks if exploited. It is crucial for users to be aware of the potential impacts of this issue.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-21239 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system and can leverage the buffer overflow to execute arbitrary code with elevated privileges. This can allow the attacker to gain control over the affected system and perform unauthorized actions.
Affected Products
- Windows Kernel: Vulnerable to heap-based buffer overflow, allowing privilege escalation.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Regularly updating systems and monitoring for unusual activity can help protect against potential exploitation.