CVE-2025-34071— GFI Kerio Control Unsigned System Image Upload Root Code Execution
Quick assessment
Affected
GFI Software Kerio Control
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
GFI Kerio Control是马耳他GFI公司的一套统一威胁管理（UTM）解决方案。该产品包括病毒防护、Web内容过滤和应用程序过滤等功能。 GFI Kerio Control 9.4.5版本存在安全漏洞，该漏洞源于升级机制不安全，可能导致远程代码执行。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-34071
Vulnerability Information
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Vulnerability Title
GFI Kerio Control Unsigned System Image Upload Root Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
A remote code execution vulnerability in GFI Kerio Control 9.4.5 allows attackers with administrative access to upload and execute arbitrary code through the firmware upgrade feature. The system upgrade mechanism accepts unsigned .img files, which can be modified to include malicious scripts within the upgrade.sh or disk image components. These modified upgrade images are not validated for authenticity or integrity, and are executed by the system post-upload, enabling root access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
GFI Kerio Control 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GFI Kerio Control是马耳他GFI公司的一套统一威胁管理（UTM）解决方案。该产品包括病毒防护、Web内容过滤和应用程序过滤等功能。 GFI Kerio Control 9.4.5版本存在安全漏洞，该漏洞源于升级机制不安全，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| GFI Software | Kerio Control | 9.4.5 | - |
|
II. Public POCs for CVE-2025-34071
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2025-34071 (1)
-
https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/ third-party-advisory technical-description exploit
Same Patch Batch · GFI Software · 2025-07-02 · 3 CVEs total
| CVE-2025-34070 | GFI Kerio Control GFIAgent Missing Authentication on Administrative Interfaces | |
| CVE-2025-34069 | GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding |
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V. Comments for CVE-2025-34071
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