How severe is CVE-2026-2036?

CVE-2026-2036 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-2036 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2036?

CVE-2026-2036 affects Gfi Archiver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2036?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-2036 have an EU (EUVD) identifier?

Yes. CVE-2026-2036 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7774.

When was CVE-2026-2036 published?

CVE-2026-2036 was published on 2026-02-20 and last updated on 2026-06-17.

CVE-2026-2036

CVE-2026-2036 is a high-severity vulnerability in Gfi Archiver with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7774
Weakness: CWE-502
Affected product: Gfi Archiver
Published: 2026-02-20
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-2036?: 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.
How severe is CVE-2026-2036?: CVE-2026-2036 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-2036 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2036?: CVE-2026-2036 affects Gfi Archiver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2036?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-2036 have an EU (EUVD) identifier?: Yes. CVE-2026-2036 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7774.
When was CVE-2026-2036 published?: CVE-2026-2036 was published on 2026-02-20 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-26-076/

Affected products (1)

cpe:2.3:a:gfi:archiver:15.10:*:*:*:*:*:*:*

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