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TI-2025-24239 Aliases CVE-2025-34071GHSA-p7cq-wxfh-7j76

GFI Kerio Control Unsigned System Image Upload Root Code Execution

Priority HIGH 76CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00813 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GFI SoftwareKerio Control9.4.5—No fix listedCNA
  • Kerio Control VendorGFI Software Affected 9.4.5 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gfi:kerio_control:9.4.5:-:*:*:*:*:*:*9.4.5VulnerableGFI Software
  • cpe:2.3:a:gfi:kerio_control:9.4.5:-:*:*:*:*:*:* Versions 9.4.5 Vulnerable ·GFI Software

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-34071
  2. 2026-10-03 Alias added: GHSA-p7cq-wxfh-7j76

References

Exploit 1

  • TI-2025-24238 GFI Kerio Control GFIAgent Missing Authentication on Administrative Interfaces CVSS 4.0CRITICAL 10.0
  • TI-2025-24237 GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding CVSS 4.0CRITICAL 9.5
  • TI-2024-35379 HTTP response splitting in GFI Software Kerio Control CVSS 3.1HIGH 8.8
  • TI-2019-12344 A DOM based XSS in GFI Kerio Control v9.3.0 allows embedding of malicious code and… CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences