CVE-2025-34071

UNKNOWN 0.0

GFI Kerio Control Unsigned System Image Upload Root Code Execution

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-306
Vendor	gfi software
Product	kerio control
Published	Jul 2, 2025
Last Updated	Feb 26, 2026

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Affected Versions

GFI Software / Kerio Control

9.4.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

z3er01 of zeronvll SSD Secure Disclosure