M-Files Server: Improper Isolation or Compartmentalization
CVE-2025-3086 is a high-severity improper isolation or compartmentalization vulnerability in M-Files Server from M-Files, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 25.3.14549 as the first without the flaw, so updating M-Files Server to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.43% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update M-Files Server to 25.3.14549 or a later version.
- Read the advisory on empower.m-files.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| M-Files | M-Files Server | before 25.3.14549 | 25.3.14549 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- LowLimited modification of data is possible.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 6.3 | Medium | CNA (m-files.com) |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
Improper isolation of users in M-Files Server version before 25.3.14549 allows anonymous user to affect other anonymous users views and possibly cause a denial of service
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Isolation or Compartmentalization
The product does not properly compartmentalize or isolate functionality, processes, or resources that require different privilege levels, rights, or permissions.
How developers prevent this class of flaw
- Break up privileges between different modules, objects, or entities. Minimize the interfaces between modules and require strong access control between them.
More Improper Isolation or Compartmentalization vulnerabilities (CWE-653)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in M-Files Server
- 7.1 High severity
- 7.3 High severity
- 8.6 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Improper Isolation or Compartmentalization vulnerabilities
- 9.8 Critical severity
- 4.4 Medium severity
- 8.4 High severity
- 7.6 High severity
- 8.8 High severity
- 8.2 High severity
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