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

Published Jan 21, 2026
·
Updated

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.

Affected Software

2 affected components
M-Files M-Files server<26.1.15632.3
M-Files M-Files server<26.1.15632.3

Remediation

Information

Update M-Files Server to unaffected version.

Event History

Jan 21, 2026
CVE Published
via MITRE·10:29 AM
Data Sourced
via MITRE·10:29 AM
RemedyDescriptionWeakness
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-0663?

CVE-2026-0663 is a denial of service vulnerability that can lead to the M-Files Server crashing.

2

How do I fix CVE-2026-0663?

To mitigate CVE-2026-0663, upgrade M-Files Server to version 26.1.15632.3 or later.

3

Who is affected by CVE-2026-0663?

CVE-2026-0663 affects M-Files Server versions prior to 26.1.15632.3 when accessed by authenticated users with vault administrator privileges.

4

What kind of attack does CVE-2026-0663 enable?

CVE-2026-0663 enables authenticated attackers to exploit a vulnerable API endpoint, causing a denial of service.

5

Is CVE-2026-0663 a remote or local vulnerability?

CVE-2026-0663 is a local vulnerability that requires authenticated access to the M-Files Server to exploit.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203