What is the CVSS score of CVE-2026-2037?

CVE-2026-2037 has a CVSS 3.0 base score of 8.8 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.0%.

Which versions of Archiver are affected by CVE-2026-2037?

A critical remote code execution vulnerability (CVE-2026-2037) affects GFI Archiver with no available patch, allowing unauthenticated attackers to execute arbitrary code on vulnerable systems.

How to fix or mitigate CVE-2026-2037?

Within 24 hours: Identify all GFI Archiver installations and their network connectivity; isolate affected systems or restrict network access to trusted sources only. Within 7 days: Implement network segmentation and deploy WAF rules to block suspicious deserialization payloads; document all affected systems and create an inventory. Within 30 days: Coordinate with GFI for patch availability; evaluate alternative archiving solutions; conduct vulnerability scanning to detect potential compromise.

Archiver CVE-2026-2037

HIGH

Deserialization of Untrusted Data (CWE-502)

2026-02-20 zdi-disclosures@trendmicro.com

RCE Deserialization Archiver

8.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

CVE Published

Feb 20, 2026 - 23:16 nvd

HIGH 8.8

DescriptionCVE.org

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.

AnalysisAI

Unsafe deserialization in GFI Archiver's MArc.Core.Remoting service (port 8017) enables authenticated remote attackers to achieve unauthenticated remote code execution with SYSTEM privileges, despite the authentication requirement being bypassable. The vulnerability stems from insufficient validation of untrusted data during the deserialization process, allowing arbitrary code execution on affected systems. No patch is currently available.

Technical ContextAI

Classified as CWE-502 (Deserialization of Untrusted Data). Affects Archiver. 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 o