CVE-2026-0663 Vulnerability Analysis & Exploit Details

CVE-2026-0663
Vulnerability Scoring

4.9
/10
Medium Risk

The vulnerability CVE-2026-0663 could compromise system integrity but typically requires user interaction to be exploited.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-0663 Details

Status: Modified

Last updated: 🕚 23 Feb 2026, 11:16 UTC
Originally published on: 🕚 21 Jan 2026, 11:15 UTC

Time between publication and last update: 33 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVE-2026-0663 Vulnerability Summary

CVE-2026-0663: 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.

Assessing the Risk of CVE-2026-0663

Access Complexity Graph

The exploitability of CVE-2026-0663 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-0663

The exploitability of CVE-2026-0663 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-0663, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-0663, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-0663 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2026-0663 poses no threat to data integrity.
  • Availability: High
    CVE-2026-0663 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-0663 References

External References

CWE Common Weakness Enumeration

CWE-1286

CAPEC Common Attack Pattern Enumeration and Classification

  • SQL Injection CAPEC-66 This attack exploits target software that constructs SQL statements based on user input. An attacker crafts input strings so that when the target software constructs SQL statements based on the input, the resulting SQL statement performs actions other than those the application intended. SQL Injection results from failure of the application to appropriately validate input.
  • NoSQL Injection CAPEC-676 An adversary targets software that constructs NoSQL statements based on user input or with parameters vulnerable to operator replacement in order to achieve a variety of technical impacts such as escalating privileges, bypassing authentication, and/or executing code.

Vulnerable Configurations

  • cpe:2.3:a:m-files:m-files_server:-:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:-:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:-:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:-:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:-:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:-:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:22.2.11051.0:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:22.2.11051.0:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:22.3.11237.3:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:22.3.11237.3:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:22.6.11534.4:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:22.6.11534.4:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:22.11.12011.0:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:22.11.12011.0:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:22.12.12140.3:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:22.12.12140.3:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.2.12340.6:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.2.12340.6:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.2.12340.6:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.2.12340.6:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.4.12455.0:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.4.12455.0:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.4.12528.1:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.4.12528.1:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.6.12695.3:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.6.12695.3:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.8.12892.6:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.8.12892.6:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.8.12892.17:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.8.12892.17:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.8.12892.23:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.8.12892.23:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.9:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.9:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.11.13168.6:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.11.13168.6:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.12.13195.0:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.12.13195.0:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:23.12.13205.0:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:23.12.13205.0:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.2.13421.8:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.2.13421.8:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.2.13421.11:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.2.13421.11:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.2.13421.15:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.2.13421.15:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.2.13421.17:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.2.13421.17:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.4.13592:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.4.13592:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.0:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.0:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.4:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.4:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.8:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.8:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.11:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.11:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.13:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.13:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.14:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.14:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.8.13981.16:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.8.13981.16:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.9.14055.3:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.9.14055.3:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:24.11.14245.5:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:24.11.14245.5:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.1.14445.5:*:*:*:*:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.1.14445.5:*:*:*:*:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.2.14524.3:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.2.14524.3:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.2.14524.9:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.2.14524.9:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.2.14524.13:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.2.14524.13:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.3.14549:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.3.14549:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.3.14681.7:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.3.14681.7:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.6.14925.0:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.6.14925.0:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.8.15085.13:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.8.15085.13:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.8.15085.17:*:*:*:lts:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.8.15085.17:*:*:*:lts:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.11.15392.1:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.11.15392.1:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.12:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.12:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.12.15491.7:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.12.15491.7:*:*:*:-:*:*:*
  • cpe:2.3:a:m-files:m-files_server:25.12.15491.9:*:*:*:-:*:*:*
    cpe:2.3:a:m-files:m-files_server:25.12.15491.9:*:*:*:-:*:*:*

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