M-Files Server up to 25.8/26.2/26.5.16015.0 improper validation of syntactic correctness of input

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in M-Files Server up to 25.8/26.2/26.5.16015.0. Affected is an unknown function. Performing a manipulation results in improper validation of syntactic correctness of input. This vulnerability was named CVE-2026-0983. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in M-Files Server up to 25.8/26.2/26.5.16015.0. This affects an unknown code. The manipulation with an unknown input leads to a improper validation of syntactic correctness of input vulnerability. CWE is classifying the issue as CWE-1286. The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax. This is going to have an impact on availability. The summary by CVE is:

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

The advisory is shared at empower.m-files.com. This vulnerability is uniquely identified as CVE-2026-0983 since 01/15/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 26.5.16015.0, LTS 25.8.15085.24 or LTS 26.2.15718.10 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-30767). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper validation of syntactic correctness of input
CWE: CWE-1286 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Server 26.5.16015.0/LTS 25.8.15085.24/LTS 26.2.15718.10

Timelineinfo

01/15/2026 CVE reserved
05/18/2026 +122 days Advisory disclosed
05/18/2026 +0 days VulDB entry created
05/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: empower.m-files.com
Status: Confirmed

CVE: CVE-2026-0983 (🔒)
GCVE (CVE): GCVE-0-2026-0983
GCVE (VulDB): GCVE-100-364473
EUVD: 🔒

Entryinfo

Created: 05/18/2026 16:01
Updated: 05/18/2026 16:13
Changes: 05/18/2026 16:01 (65), 05/18/2026 16:13 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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