---
id: CVE-2026-82765
title: >-
  Path traversal vulnerability exists in Contec FX5000 series, FX4000 series,
  and FX3000 series
summary: >-
  Path traversal vulnerability exists in Contec FX5000 series, FX4000 series,
  and FX3000 series. If this vulnerability is exploited, arbitrary files on the
  server may be viewed and/or altered by an attacker who can access the product
  via FTP.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-23
vendor: 'Contec Co., Ltd.'
product: FXA5000
affected:
  - FXA5000 < 1.12.00
  - FXA5020 < 1.12.00
  - 'FXA5020-[][] < 1.12.00'
  - FXE5000 < 1.12.00
  - 'FXE5000-[][] < 1.12.00'
  - 'FXS5000-[][] < 1.12.00'
  - FXS5021 < 1.12.00
  - FXE4000 < 1.14.00
  - FXE4000-WP < 1.14.00
  - FXS4000 < 1.14.00
  - FXS4020 < 1.14.00
  - FXA3000 < 1.20.00
  - 'FXA3000-[][] < 1.20.00'
  - FXA3020 < 1.20.00
  - 'FXA3020-[][] < 1.20.00'
  - FXA3200 < 1.20.00
  - FXE3000 < 1.20.00
  - 'FXE3000-[][] < 1.20.00'
  - FXE3000-WP < 1.20.00
  - 'FXS300[]-CN < 1.20.00'
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:27:25.623'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82765'
references:
  - url: 'https://jvn.jp/en/vu/JVNVU99009004/'
    label: vultures@jpcert.or.jp
  - url: >-
      https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf
    label: vultures@jpcert.or.jp
tags:
  - nvd
  - cve.org
epss: 0.00486
epssPercentile: 0.39275
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-14T14:51:39.805889Z'
ingestedAt: '2026-09-14T15:23:07.420Z'
---

## Overview

Path traversal vulnerability exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, arbitrary files on the server may be viewed and/or altered by an attacker who can access the product via FTP.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.