CVE-2025-64057Public exploit

Command execution via unrestricted upload destination

Published Dec 5, 2025 · Updated Jul 5, 2026

Path traversal in Fanvil X210 V2 firmware 2.12.20 allows remote attackers to execute commands through an unauthenticated upload. The web upload handler accepts a caller-controlled upload/dest path, grants execute permission to the uploaded file, and performs no back-end extension check. An attacker on the local network can place a shell script under /webroot/cgi-bin and invoke it through the CGI processor, gaining control of the device.

CVSS severity8.3
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Fanvil X210 V2 firmware 2.12.20 allows remote attackers to execute commands through an unauthenticated upload. The web upload handler accepts a caller-controlled upload/dest path, grants execute permission to the uploaded file, and performs no back-end extension check. An attacker on the local network can place a shell script under /webroot/cgi-bin and invoke it through the CGI processor, gaining control of the device.

The record

CVE
CVE-2025-64057
Published
Dec 5, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1210, T1059.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.3CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1210Exploitation of Remote Services
T1059.004Unix Shell

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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