CVE-2025-34069 GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding
Unauthenticated attackers can bypass authentication via proxy forwarding to gain full administrative access to the Kerio Control appliance.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-34069?
CVE-2025-34069 is a critical authentication bypass vulnerability in GFI Software Kerio Control, published on 2 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An authentication bypass vulnerability exists in GFI Kerio Control 9.4.5 due to insecure default proxy configuration and weak access control in the GFIAgent service. The non-transparent proxy on TCP port 3128 can be used to forward unauthenticated requests to internal services such as GFIAgent, bypassing firewall restrictions and exposing internal management endpoints. This enables unauthenticated attackers to access the GFIAgent service on ports 7995 and 7996, retrieve the appliance UUID, and issue administrative requests via the proxy. Exploitation results in full administrative access to the Kerio Control appliance.
Weakness: CWE-306
Which versions are affected by CVE-2025-34069?
It affects 1 product.
Products include Gfi Kerio Control.
How do I fix CVE-2025-34069?
No fix has been published for CVE-2025-34069 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-34069 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34069 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in GFI Software Kerio Control
Sources
Also known as GHSA-rf49-98vq-w8qg.