CVE-2025-34071

CRITICAL EPSS 48.6%
Published Jul 2, 202512mo ago · Modified Jun 17, 20262w ago
9.4 CVSS 4.0
Critical
Find Similar
Published Jul 2, 2025 12mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.4
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
48.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 1

VendorProductVersionRange
gfikerio_control9.4.5any

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.