CVE-2026-2036
Received Received - Intake
Deserialization RCE in GFI Archiver MArc.Store with Auth Bypass

Publication date: 2026-02-20

Last updated on: 2026-02-24

Assigner: Zero Day Initiative

Description
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. Was ZDI-CAN-27936.
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Meta Information
Published
2026-02-20
Last Modified
2026-02-24
Generated
2026-06-16
AI Q&A
2026-02-21
EPSS Evaluated
2026-06-15
NVD
CVE-2026-2036
EUVD
EUVD-2026-7774
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gfi archiver 15.10
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
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Executive Summary

This vulnerability exists in GFI Archiver's MArc.Store.Remoting.exe process due to improper validation of user-supplied data, which leads to deserialization of untrusted data.

An attacker can exploit this flaw to execute arbitrary code remotely on affected installations.

Although authentication is required, the existing authentication mechanism can be bypassed, allowing remote code execution in the context of the SYSTEM user.

Impact Analysis

This vulnerability can allow an attacker to execute arbitrary code remotely with SYSTEM-level privileges on affected systems.

Such access can lead to full compromise of the affected system, including unauthorized access, data theft, data manipulation, or disruption of services.

Compliance Impact

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Detection Guidance

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