Critical severity9.8NVD Advisory· Published Jul 2, 2025· Updated Jun 17, 2026
CVE-2025-34071
CVE-2025-34071
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.
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Affected products
2- Range: = 9.4.5
- Range: 9.4.5
Patches
Vulnerability mechanics
References
2- ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/nvdExploitThird Party Advisory
- vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rcenvdThird Party Advisory
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