ZDI-CAN-27936: ZDI-26-076: GFI Archiver MArc.Store 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.Store.Remoting.exe process. 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-2026-2036.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-27936?
ZDI-CAN-27936 has a high severity rating due to its potential for remote code execution.
How do I fix ZDI-CAN-27936?
To fix ZDI-CAN-27936, update to the latest version of GFI Archiver provided by the vendor.
What type of vulnerability is ZDI-CAN-27936?
ZDI-CAN-27936 is categorized as a deserialization of untrusted data vulnerability.
Who is affected by ZDI-CAN-27936?
Any installation of GFI Archiver that permits authentication is potentially affected by ZDI-CAN-27936.
Can ZDI-CAN-27936 be exploited without authentication?
No, ZDI-CAN-27936 requires authentication to exploit.