Advisory Details

February 12th, 2026

GFI Archiver MArc.Core Missing Authorization Authentication Bypass Vulnerability

ZDI-26-075
ZDI-CAN-27934

CVE ID CVE-2026-2038
CVSS SCORE 7.3, AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS GFI
AFFECTED PRODUCTS Archiver
VULNERABILITY DETAILS

This vulnerability allows remote attackers to bypass authentication on affected installations of GFI Archiver. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the configuration of the MArc.Core.Remoting.exe process, which listens on port 8017. The issue results from the lack of authorization prior to allowing access to functionality. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of SYSTEM.

ADDITIONAL DETAILS

Fixed in Version 15.11
https://gfi.ai/products-and-solutions/network-security-solutions/archiver/resources/documentation/product-releases


DISCLOSURE TIMELINE
  • 2025-11-19 - Vulnerability reported to vendor
  • 2026-02-12 - Coordinated public release of advisory
  • 2026-02-12 - Advisory Updated
CREDIT Anonymous
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