Product:
Windows Error Reporting
Summary
Improper handling of insufficient permissions or privileges in Windows Error Reporting allows an authorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks as it enables unauthorized access to sensitive system functions. Attackers with local access can exploit this flaw to gain higher privileges than intended.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-20817 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the affected system. By leveraging insufficient permission checks in Windows Error Reporting, the attacker can execute malicious code that elevates their privileges. This can be done without requiring user interaction, making it a low-complexity attack that can be executed by anyone with access to the machine.
Affected Products
- Windows Error Reporting: A service that collects and sends error reports to Microsoft, which can be exploited to gain elevated privileges.
Mitigation
To mitigate this vulnerability, users should ensure that their systems are updated with the latest security patches from Microsoft. Additionally, restricting local access to sensitive systems can help prevent unauthorized exploitation. Regularly reviewing user permissions and implementing least privilege principles can also reduce the risk of privilege escalation.