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CVE-2025-34069

30
FAUCET Score

CVE-2025-34069 is a critical authentication bypass vulnerability affecting GFI Kerio Control 9.4.5. It stems from an insecure default proxy configuration and weak access control in the GFIAgent service, allowing unauthenticated attackers to bypass firewall restrictions. Exploiting this vulnerability grants full administrative access to the appliance by leveraging the non-transparent proxy on TCP port 3128 to forward requests to internal services. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network without user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
9.4.5CPE matchmatch criteria
cpe:2.3:a:gfi:kerio_control:9.4.5:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.5CRITICAL

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 28th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ssd-disclosure.com / ssd-advisory-kerio-control-authentication-bypass-and-rce
ExploitThird Party Advisory
vulncheck.com / advisories/gfi-kerio-control-auth-bypass-rce
Third Party Advisory