CVE-2025-34071 | THREATINT

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.

Reserved 2025-04-15 | Published 2025-07-02 | Updated 2025-07-02 | Assigner VulnCheck

CRITICAL: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status

unaffected

9.4.5

affected

Credits

z3er01 of zeronvll finder

SSD Secure Disclosure coordinator

References

ssd-disclosure.com/...control-authentication-bypass-and-rce/ third-party-advisory technical-description exploit

vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce third-party-advisory

cve.org (CVE-2025-34071)

nvd.nist.gov (CVE-2025-34071)

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