CVE-2024-52875: Gfi Kerio Control

High severity, CVSS 8.8. EPSS: 29.3% chance of exploitation in the next 30 days.

An issue was discovered in GFI Kerio Control 9.2.5 through 9.4.5. The dest GET parameter passed to the /nonauth/addCertException.cs and /nonauth/guestConfirm.cs and /nonauth/expiration.cs pages is not properly sanitized before being used to generate a Location HTTP header in a 302 HTTP response. This can be exploited to perform Open Redirect or HTTP Response Splitting attacks, which in turn lead to Reflected Cross-Site Scripting (XSS). Remote command execution can be achieved by leveraging the upgrade feature in the admin interface.

Affected products

• Gfi Kerio Control: from 9.2.5, up to and including 9.4.5

Published 2025-01-31. Last modified 2026-06-17.