CVE-2026-2036 — HIGH (8.8) — White Hats Nepal

Vulnerability 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.

CVSS Score

8.8

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gfi	Archiver	15.10

Related Weaknesses (CWE)

CWE-502

References

https://www.zerodayinitiative.com/advisories/ZDI-26-076/Third Party Advisory

FAQ

What is CVE-2026-2036?

CVE-2026-2036 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 Arc...

How severe is CVE-2026-2036?

CVE-2026-2036 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2036?

Check the references section above for vendor advisories and patch information. Affected products include: Gfi Archiver.