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Archiver CVE-2026-2037

HIGH
Deserialization of Untrusted Data (CWE-502)
2026-02-20 zdi-disclosures@trendmicro.com
8.8
CVSS 3.0 · NVD
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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

2
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. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Bypass authentication mechanism
Exploit
Send malicious serialized object to port 8017
Execution
Trigger unsafe deserialization in MArc.Core.Remoting.exe
Impact
Execute arbitrary code with process privileges

Vulnerability AssessmentAI

Exploitation GFI Archiver with MArc.Core.Remoting.exe listening on port 8017. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker could exploit this vulnerability to execute arbitrary code on affected installations of GFI Archiver.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all GFI Archiver installations and their network connectivity; isolate affected systems or restrict network access to trusted sources only. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-2037 vulnerability details – vuln.today

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