CVE-2025-34071

GFI Kerio Control Unsigned System Image Upload Root Code Execution

CVSS 9.4 CRITICALEPSS 0.7%CWE-306

Vexday Risk Score

28Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 9.4EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

02 jul 2025Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Productos afectados

GFI Software · Kerio Control

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Referencias

https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/https://vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce