CVE-2023-3405: Denial of service condition in M-Files Server

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-27 · updated 2026-06-17
Weakness: CWE-248

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

Affected products

M-Files Corporation M-Files Server: before 23.6.12695.3 — fixed in 23.6.12695.3

How to fix

Upgrade to a fixed version: M-Files Corporation M-Files Server 23.6.12695.3. Check the vendor advisory for mitigations.

References

https://empower.m-files.com/security-advisories/CVE-2023-3405
https://product.m-files.com/security-advisories/cve-2023-3405/
https://www.m-files.com/about/trust-center/security-advisories/cve-2023-3405-denial-of-service-in-m-files-server/
https://www.m-files.com/about/trust-center/security-advisories/cve-2023-3405

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