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M Files ServerApplication · M Files

CVE-2024-0563

MEDIUM · 6.5 CVSS v3.1 Published 2024-02-23
Fix available
A fix is available. Upgrade to 23.2.12340.6 / 23.8.12892.6 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Denial of service condition in M-Files Server in versions before 24.2 (excluding 23.2 SR7 and 23.8 SR5) allows anonymous user to cause denial of service against other anonymous users.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

M-Files Server contains a denial of service vulnerability in versions prior to 24.2 where an unauthenticated (anonymous) user can trigger a condition that causes the server to become unavailable to other anonymous users, disrupting service availability.

MitigationUpgrade M-Files Server to version 24.2 or later, or apply the specific service releases (23.2 SR7 or 23.8 SR5) that contain the fix. Schedule during a maintenance window to minimize business impact.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
M Files ServerApplication
Affected:< 23.2.12340.6> 23.2.12340.6, < 23.8.12892.6>= 23.2.12340.6, < 23.8.12892.17> 23.8.12892.6, < 24.2.13421.8

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify M-Files Server version
    Open M-Files Admin, select the server in the left pane, and view the version number displayed in the right panel under Server Information. Alternatively, check the Windows Programs and Features list for M-Files Server version, or run 'm-filesadmin.exe --version' from the installation directory.
    Affected if The installed version is below 24.2.13421.8, or falls between 23.2.12340.6 and 23.8.12892.17, or is between 23.8.12892.6 and 24.2.13421.8 (excluding fixed service releases).
  2. Confirm anonymous user access is enabled
    Open M-Files Admin, navigate to Authentication > Anonymous Access (or look for anonymous user configuration in the vault properties). Verify whether 'Allow anonymous access' is enabled for any vault or the server.
    Affected if Anonymous access is enabled, as the vulnerability specifically affects unauthenticated anonymous users and their ability to disrupt service for other anonymous users.
  3. Check server uptime after anonymous requests
    If anonymous access is enabled, monitor the M-Files Server service response time and availability when multiple anonymous connections are made in quick succession. Look for degraded performance or unavailability specifically for anonymous users.
    Affected if The server becomes unresponsive or exhibits significantly degraded performance for anonymous users after triggering the condition, while authenticated users may still have access.

You are affected if your M-Files Server version is below 24.2.13421.8 (or below 23.2.12340.7 / 23.8.12892.17 for the specific service releases) AND anonymous access is enabled in your environment.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 23.2.12340.6 / 23.8.12892.6 / 23.8.12892.17 or later
Fixed in 23.2.12340.623.8.12892.623.8.12892.17
Interim mitigation

Upgrade M-Files Server to version 24.2 or later, or apply the specific service releases (23.2 SR7 or 23.8 SR5) that contain the fix. Schedule during a maintenance window to minimize business impact.

Recommended fix High confidence

M-Files Server 24.2.13421.8 or later

  1. 1. Identify current M-Files Server version by checking the M-Files Server administration interface or installed program information
  2. 2. If running a version below 24.2.13421.8, plan for upgrade to version 24.2 or later
  3. 3. Before upgrading, review M-Files release notes for version 24.2 to check for any breaking changes or migration requirements
  4. 4. Perform a full backup of the M-Files Vault and database
  5. 5. Upgrade M-Files Server to version 24.2.13421.8 or later
  6. 6. Verify the upgrade was successful and M-Files services are running
  7. 7. Test that anonymous user access functions correctly without denial of service issues
Caveat Review M-Files 24.2 release notes for any breaking changes or migration requirements before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in M Files Server Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-0563 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data