CVE-2024-52875
Published: April 11, 2026
Official Description
Several vulnerabilities are present in GFI KerioControl due to improper sanitization of the 'dest' GET parameter used to generate a 'Location' HTTP header. The affected endpoints include /nonauth/addCertException.cs, /nonauth/guestConfirm.cs, and /nonauth/expiration.cs. Exploitation could allow for HTTP response splitting and may additionally lead to a reflected cross-site scripting (XSS).
Technical Analysis
CVE-2024-52875 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2024-52875 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-52875 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1