Medium 6.9Published Jan 21, 2026

CVE-2026-0663Denial of Service condition in M-Files Server

Updated under an hour ago (Oct 26, 2026, 8:40 PM ET)

Does this affect you?

It affects M-Files Corporation M-Files Server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for M-Files Corporation M-Files Server

Exploited in the last 30 days

Denial-of-service vulnerability in M-Files Server versions before 26.1.15632.3 allows an authenticated attacker with vault administrator privileges to crash the M-Files Server process by calling a vulnerable API endpoint.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-1286
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: M-Files Corporation
NVD analysis: Modified
Record last updated: Feb 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

M-Files Corporation M-Files Server m_files:server (from the name)	before 26.1.15632.3	CNA record
m-files m-files_server m-files:m-files_server	before 26.1.15632.3	NVD

References

References

https://product.m-files.com/security-advisories/cve-2026-0663/	vendor-advisory, broken-link
https://empower.m-files.com/security-advisories/CVE-2026-0663	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.