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Vulnerabilities

Vulnerability · CVE-2026-2039

GFI Archiver MArc.Store Missing Authorization Authentication Bypass Vulnerability.

Published Feb 20, 2026 · catalog updated Jun 17, 2026 · GFI Archiver MArc.Store Missing

Check if you run it

No confirmed exploitation is on record for CVE-2026-2039. EPSS is 0.70%. Act only if a listed version of GFI Archiver MArc.Store Missing is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (GFI Archiver MArc.Store Missing).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.70%
Remediation
Advisory link
Affected products
cpe gfi/archiver

GFI Archiver MArc.Store 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.Store.Remoting.exe process, which listens on port 8018. 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-28597.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe gfi/archiver15.10

How to fix CVE-2026-2039

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-2039. EPSS is 0.70%. Act only if a listed version of GFI Archiver MArc.Store Missing is installed.

Which versions are affected?

Compare what you have installed with 15.10. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-862: Missing Authorization. EPSS 0.70%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 20, 2026 · NIST NVD

    Detected

    GFI Archiver MArc.Store 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.Store.Remoting.exe process, which listens on port 8018. The issue results from the

  2. Jun 17, 2026 · NIST NVD

    Updated

    GFI Archiver MArc.Store 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.Store.Remoting.exe process, which listens on port 8018. The issue results from the

Sources

  • CVE.orgVulnerability recordCVE-2026-2039

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2039

    30-day exploitation probability 0.7%

    first.org
  • NIST NVDVulnerability recordCVE-2026-2039

    GFI Archiver MArc.Store 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 exist

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.