Auth bypass in Gfi Kerio Control
CVE-2025-34070
A missing authentication vulnerability in the GFIAgent component of GFI Kerio Control 9.4.5 allows unauthenticated remote attackers to perform privileged operations. The GFIAgent service, responsible for integration with GFI AppManager, exposes HTTP services on ports 7995 and 7996 without proper authentication. The /proxy handler on port 7996 allows arbitrary forwarding to administrative endpoints when provided with an Appliance UUID, which itself can be retrieved from port 7995. This results in a complete authentication bypass, permitting access to sensitive administrative APIs.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Gfi Kerio Control — versions 9.4.5
- Gfi Software Kerio Control — versions 9.4.5
Weakness classification (CWE)
References
- ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/ (Exploit, technical-description, Third Party Advisory, exploit, third-party-advisory)
- vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-34070?
- CVE-2025-34070 is a critical-severity vulnerability in Gfi Kerio Control, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2025-07-02.
- How severe is CVE-2025-34070?
- Critical severity. CVSS v3 base score is 9.8 out of 10.