What is the CVSS score of CVE-2026-37064?

CVE-2026-37064 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.2%.

Veno File Manager CVE-2026-37064

EUVD-2026-67266 MEDIUM

Observable Discrepancy (CWE-203)

2026-08-27 mitre

GHSA-64gc-3p3x-3p56

Information Disclosure PHP

5.3

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

vuln.today AI

5.3 MEDIUM

Unauthenticated network-accessible endpoint requires no interaction; impact is limited to username disclosure with zero integrity or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Metadata Corrected

Sep 01, 2026 - 21:40 vuln.today

tag: N A removed

Analysis Generated

Sep 01, 2026 - 20:52 vuln.today

CVSS changed

Sep 01, 2026 - 20:22 NVD

5.3 (MEDIUM)

CVE Published

Aug 27, 2026 - 00:00 cve.org

UNKNOWN (no severity yet)

DescriptionCVE.org

User enumeration in /vfm-admin/ajax/usr-check.php in Veno File Manager Project 4.4.9 allows an unauthenticated attacker to enumerate the application users via sending a specially crafted POST request to the affected endpoint with a chosen 'user_name' parameter to test if the user exists.

AnalysisAI

User enumeration in Veno File Manager 4.4.9 exposes the unauthenticated admin AJAX endpoint /vfm-admin/ajax/usr-check.php to remote attackers, who can systematically harvest valid usernames by sending POST requests with varying user_name values and observing observable response discrepancies (CWE-203). The vulnerability requires no credentials, no user interaction, and no special configuration beyond the admin panel being network-reachable. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution

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Vulnerability AssessmentAI

Exploitation	The Veno File Manager admin panel must be reachable from the attacker's network - specifically the `/vfm-admin/ajax/usr-check.php` endpoint must accept unauthenticated POST requests. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 5.3 Medium rating with AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N accurately characterizes this vulnerability: low exploitation barrier, fully network-accessible without authentication, but with impact strictly limited to username disclosure. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation	No exact patched version has been confirmed from available data; the vendor homepage at http://veno.com should be monitored for an updated release. … Detailed patch versions, workarounds, and compensating controls in full report.