CVE-2026-2037: GFI Archiver · Deserialization of Untrusted Data
Affects GFI ArchiverSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 1.3% chance of exploitation in 30 days – higher than 71% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GFIArchiver | Affected
| Fixed in– |
AI-suggested
Until an official patch is released by GFI, organizations should implement the following mitigations: 1) Restrict network access to port 8017 using firewalls or network segmentation to limit exposure to trusted administrators only. 2) Employ intrusion detection/prevention systems (IDS/IPS) with signatures or anomaly detection for suspicious deserialization or remote code execution attempts targeting GFI Archiver. 3) Enforce strong authentication and monitor authentication logs for unusual access patterns, given the authentication bypass possibility. 4) Disable or restrict the MArc.Core.Remoting.exe service if not required for business operations. 5) Conduct regular backups of archived data and system configurations to enable recovery in case of compromise. 6) Prepare for rapid deployment of vendor patches once available and test updates in controlled environments. 7) Educate IT and security teams about this vulnerability and monitor threat intelligence sources for emerging exploit information. 8) Consider application-layer network proxies or web application firewalls (WAFs) that can inspect and block malicious serialized payloads targeting this service.
Description
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.