Product:
Winlogon
Summary
Improper link resolution before file access in Winlogon allows an authorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks if exploited. Attackers can gain higher privileges than intended, potentially compromising the system.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-25187 |
Exploitation
To exploit this vulnerability, an attacker with local access can manipulate link resolution processes in Winlogon. By crafting specific file paths or links, the attacker can trick the system into executing unauthorized commands or accessing sensitive files, thereby elevating their privileges.
Affected Products
- Winlogon: A critical component of the Windows operating system responsible for handling user logins and security.
Mitigation
To mitigate this vulnerability, it is essential to apply the latest security updates provided by Microsoft. Regularly updating the system and monitoring for unusual activities can help prevent exploitation. Additionally, restricting local access to sensitive systems can reduce the risk of unauthorized privilege escalation.