Product:
Windows Win32K – GRFX
Summary
An integer overflow or wraparound vulnerability in Windows Win32K – GRFX allows an authorized attacker to elevate privileges locally. This can lead to unauthorized access and control over the affected system. The vulnerability poses a significant risk due to its high impact on confidentiality, integrity, and availability.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-34330 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system and can leverage the integer overflow to gain elevated privileges. This may involve executing specially crafted code that triggers the overflow condition, allowing the attacker to perform actions that would normally require higher privileges.
Affected Products
- Windows Win32K – GRFX: Vulnerable to integer overflow leading to privilege escalation.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Users should ensure their systems are up to date and follow best practices for local access control to minimize the risk of exploitation.