ZDI-26-074: GFI Archiver MArc.Core Deserialization of Untrusted Data Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of GFI Archiver. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. 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 proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of GFI Archiver. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-2037.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-26-074?
The severity of ZDI-26-074 is rated as high with a score of 8.8.
How do I fix ZDI-26-074?
To fix ZDI-26-074, apply the latest security updates provided by GFI for GFI Archiver.
What type of vulnerability is ZDI-26-074?
ZDI-26-074 is a remote code execution vulnerability due to deserialization of untrusted data.
Is authentication required to exploit ZDI-26-074?
Yes, authentication is required to exploit ZDI-26-074, but the existing authentication mechanism can be bypassed.
Which software is affected by ZDI-26-074?
GFI GFI Archiver is the software affected by ZDI-26-074.