CVE-2026-2037CWE-502

GFI Archiver MArc.Core Deserialization of Untrusted Data Remote Code Execution Vulnerability

High · published February 20, 2026

CVSS v3.0
8.8
EPSS
1%
Percentile
71.7
In the wild
Unconfirmed
What it is

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. Was ZDI-CAN-27935.

The record
Technical detail
CVSS v3.0
8.8 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01369 · 71.7th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-02-20T22:13Z
EPSS history
Timeline
  • 20 FEB 22:13Z
    GFI Archiver MArc.Core Deserialization of Untrusted Data Remote Code Execution Vulnerability
    cvelistv5