What is the CVSS score of CVE-2026-2038?

CVE-2026-2038 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.6%.

Which versions of Archiver are affected by CVE-2026-2038?

A critical authentication bypass vulnerability in GFI Archiver (CVE-2026-2038, CVSS 9.8) allows unauthenticated remote attackers to gain unauthorized access to archiving systems.

How to fix or mitigate CVE-2026-2038?

Within 24 hours: Identify all GFI Archiver instances in your environment and isolate them from untrusted networks if possible; enable enhanced logging and monitoring for suspicious access attempts. Within 7 days: Implement network segmentation to restrict access to GFI Archiver to authorized users only; deploy WAF rules to block exploitation attempts if applicable; contact GFI for patch timeline and interim guidance. Within 30 days: Develop and execute a remediation plan based on vendor guidance, which may include upgrading to a patched version, disabling the vulnerable MArc.Core component, or replacing the solution entirely.

Archiver CVE-2026-2038

CRITICAL

Missing Authorization (CWE-862)

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

Authentication Bypass Archiver

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

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

CRITICAL 9.8

DescriptionCVE.org

GFI Archiver MArc.Core Missing Authorization Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of GFI Archiver. Authentication is not required to exploit this vulnerability.

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 authorization prior to allowing access to functionality. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of SYSTEM. Was ZDI-CAN-27934.