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    CVE-2025-70520

    The websocket handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce proper authentication restrictions against sessionless users. The lack of restrictions grants anyone the ability to view any device resources such as operational logs or perform diagnostic requests.

    Published:Oct 7, 2026
    Last Modified:Oct 15, 2026
    EPS:Oct 7, 2026
    EPSS Score:0.00188
    CVSS Score:9.8

    Affected Products

    Vendor
    Fanvil
    Product
    X7a

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-114 Authentication Abuse
    CAPEC-115 Authentication Bypass
    CAPEC-12 Choosing Message Identifier
    CAPEC-151 Identity Spoofing
    CAPEC-166 Force the System to Reset Values
    CAPEC-19 Embedding Scripts within Scripts
    CAPEC-194 Fake the Source of Data
    CAPEC-216 Communication Channel Manipulation
    CAPEC-22 Exploiting Trust in Client
    CAPEC-36 Using Unpublished Interfaces or Functionality
    CAPEC-441 Malicious Logic Insertion
    CAPEC-478 Modification of Windows Service Configuration
    CAPEC-479 Malicious Root Certificate
    CAPEC-502 Intent Spoof
    CAPEC-503 WebView Exposure
    CAPEC-536 Data Injected During Configuration
    CAPEC-546 Incomplete Data Deletion in a Multi-Tenant Environment
    CAPEC-550 Install New Service
    CAPEC-551 Modify Existing Service
    CAPEC-552 Install Rootkit
    CAPEC-556 Replace File Extension Handlers
    CAPEC-558 Replace Trusted Executable
    CAPEC-562 Modify Shared File
    CAPEC-563 Add Malicious File to Shared Webroot
    CAPEC-564 Run Software at Logon
    CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
    CAPEC-578 Disable Security Software
    CAPEC-593 Session Hijacking
    CAPEC-62 Cross Site Request Forgery
    CAPEC-633 Token Impersonation
    CAPEC-650 Upload a Web Shell to a Web Server
    CAPEC-94 Adversary in the Middle (AiTM)

    Related CVEs

    CVE-2025-70521 (CVSS 9.8) — The management portal's diagnostic ping tool of Fanvil x7a firmware version 2.6.0.1182 does not handle user su…
    CVE-2025-70519 (CVSS 6.1) — The device log component of Fanvil x7a firmware version 2.6.0.1182 does not properly sanitize or encode reflec…
    CVE-2025-70516 (CVSS 9.1) — The websocket handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce proper authentication restric…
    CVE-2025-70517 (CVSS 8.8) — The request handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce any cross-origin resource prote…
    CVE-2025-70518 (CVSS 10) — The management portal's diagnostic ping tool of Fanvil x7a firmware version 2.6.0.1182 does not handle user su…
    CVE-2025-70522 (CVSS 8.8) — The request handler of Fanvil x7a firmware version 2.6.0.1182 does not enforce any cross-origin resource prote…
    CVE-2025-70515 (CVSS 6.1) — The device log component of Fanvil x7a firmware version 2.6.0.1182 does not properly sanitize or encode reflec…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High