CVE-2025-3086: Improper isolation of users in M-Files Server version before 25.3.14549 allows anonymous user to affect other

Q: How do I fix CVE-2025-3086?

m-files server: upgrade to 25.3.14549. Exact commands for each OS are on this page.

Q: Is CVE-2025-3086 being exploited?

CVE-2025-3086 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-3086 affect?

CVE-2025-3086 affects m-files server. Severity is high (CVSS 7.1). 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

Routine

HIGH 7.1UPGRADE

CVE-2025-3086 is a high-severity flaw (CVSS 7.1) affecting m-files server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-653
Published	2025-04-04
Last modified	2026-06-17

Publisher (CNA): M-Files Corporation · Vendor: m-files

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-04 07:15 UTCPublished CVE record published
2026-06-17 09:19 UTCUpdated Record last modified

m-files m-files server UPGRADE

Affected: < 25.3.14549

Fixed in: 25.3.14549

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy m-files-server || rpm -q m-files-server || m-files-server --version

2. UPGRADE to 25.3.14549 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade m-files-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade m-files-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-3086?

m-files server: upgrade to 25.3.14549. Exact commands for each OS are on this page.

Is CVE-2025-3086 being exploited?

CVE-2025-3086 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-3086 affect?

CVE-2025-3086 affects m-files server. Severity is high (CVSS 7.1). 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

How urgent is CVE-2025-3086?

Priority 34/100. High severity

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References

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