CVE-2025-34071

critical · 9.4

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.

9.4

CVSS

0.7%

EPSS (exploit prob.)

52nd

EPSS percentile

2025-07-02

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-306

Affected products

Vendor	Product	Affected versions
gfi	kerio_control	9.4.5

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-34071