Is CVE-2023-3405 in the CISA KEV catalog?

No. CVE-2023-3405 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3405?

CVE-2023-3405 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-3405?

CVE-2023-3405 has an EPSS score of 0.84% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-3405?

Upgrade m-files server to 23.6.12695.3 or later.

CVE & CISA-KEV Catalog

CVE-2023-3405

HIGH

7.5

CVSS v3

NVD

Description

Unchecked parameter value in M-Files Server in versions before 23.6.12695.3 (excluding 23.2 SR2 and newer) allows anonymous user to cause denial of service

CWE-248

How to fix

Remediation Available

m-files serverNVD

Affected:< 23.6.12695.3Fixed in:23.6.12695.3CVE-2023-3405derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.84%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Vendor Advisory1

m-files.com

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-23.