CVE-2025-34071

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/	Exploit Third Party Advisory
https://vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gfi:kerio_control:9.4.5:-:*:*:*:*:*:*

History

17 Sep 2025, 13:41

Type	Values Removed	Values Added
References	~~() https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/ -~~	() https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/ - Exploit, Third Party Advisory
References	~~() https://vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce -~~	() https://vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce - Third Party Advisory
CPE		cpe:2.3:a:gfi:kerio_control:9.4.5:-::::::
First Time		Gfi kerio Control Gfi
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8

03 Jul 2025, 15:13

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-07-02 14:15

Updated : 2025-09-17 13:41

NVD link : CVE-2025-34071

Mitre link : CVE-2025-34071

CVE.ORG link : CVE-2025-34071

JSON object : View

Products Affected

gfi

kerio_control

CWE

CWE-306

Missing Authentication for Critical Function

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