Vulnerability · Published May 18, 2026 · Assigned by M-Files Corporation

CVE-2026-0983Denial of service vulnerability in M-Files Server

High 7.1

In plain English

A high-severity security flaw in M-Files Server from M-Files Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High
Exploit odds (30 days)0.2%top 86.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Denial-of-service condition in M-Files Server versions before 26.5.16015.0, before 26.2 LTS, and before 25.8 LTS SR3 allows an authenticated user to cause the MFserver process to crash

Affected products (as reported)

VendorProductVersions
M-Files Corporation M-Files Server 0 – before 26.5.16015.0LTS 25.8.15085.13 – before LTS 25.8.15085.24LTS 26.2.15718.8 – before LTS 26.2.15718.10

Weakness: CWE-1286 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References