CVE-2025-64055Public exploitNetwork attack vector

Administrative access via unprotected CGI paths

Published Dec 3, 2025 · Updated Jul 5, 2026

Authentication bypass in Fanvil X210 V2 firmware 2.12.20 allows remote attackers to access administrative functions over the local network. The embedded HTTP server applies authentication only to /html, so requests to /cgi-bin can invoke administrative CGI scripts without credentials. Local-network reachability is required; exposed functions include file upload, firmware update, and reboot, allowing configuration changes and service interruption.

CVSS severity9.8
Critical
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Fanvil X210 V2 firmware 2.12.20 allows remote attackers to access administrative functions over the local network. The embedded HTTP server applies authentication only to /html, so requests to /cgi-bin can invoke administrative CGI scripts without credentials. Local-network reachability is required; exposed functions include file upload, firmware update, and reboot, allowing configuration changes and service interruption.

The record

CVE
CVE-2025-64055
Published
Dec 3, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1210Exploitation of Remote Services

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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