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Archiver CVE-2026-2036

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.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.

AnalysisAI

Remote code execution in GFI Archiver's MArc.Store.Remoting.exe component stems from unsafe deserialization of untrusted data, allowing authenticated attackers to execute arbitrary code with SYSTEM privileges despite the authentication requirement being bypassable. The vulnerability affects the deserialization and archiver products due to insufficient validation of user-supplied input, enabling full system compromise. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Bypass authentication mechanism
Exploit
Send malicious serialized object to MArc.Store.Remoting.exe
Execution
Trigger unsafe deserialization
Impact
Execute arbitrary code remotely

Vulnerability AssessmentAI

Exploitation GFI Archiver with MArc.Store.Remoting.exe process active. … 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 systems running GFI Archiver and isolate them from production networks if possible; disable remote access to affected systems and restrict network access to trusted sources only. …

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CVE-2026-2036 vulnerability details – vuln.today

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