CVE-2026-82765: Relative path traversal in Contec Co., Ltd. FXA5000
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.
AI Analysis
Technical Summary
This vulnerability involves relative path traversal in Contec FXA5000 series and related FX4000 and FX3000 series devices. Exploitation requires FTP access and allows an attacker to read or alter arbitrary files on the affected device's server. The CVSS v3.1 base score is 8.1, indicating high impact on confidentiality and integrity, with no impact on availability. The affected versions include all versions prior to 1.12.00 for FXA5000, prior to 1.14.00 for FX4000, and prior to 1.20.00 for FX3000 series devices. There is no information on available patches or vendor advisories.
Potential Impact
Successful exploitation can lead to unauthorized disclosure and modification of files on the device, compromising confidentiality and integrity. This could allow attackers to manipulate device behavior or extract sensitive information. Availability is not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict FTP access to trusted users only and monitor for unauthorized access attempts.
CVE-2026-82765: Relative path traversal in Contec Co., Ltd. FXA5000
Description
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.
CVSS v3.1
Score 8.1high
Affected software
Contec Co., Ltd.
FXA5000
Contec Co., Ltd.
FXA5020
Contec Co., Ltd.
FXA5020-[][]
Contec Co., Ltd.
FXE5000
Contec Co., Ltd.
FXE5000-[][]
Contec Co., Ltd.
FXS5000-[][]
Contec Co., Ltd.
FXS5021
Contec Co., Ltd.
FXE4000
Contec Co., Ltd.
FXE4000-WP
Contec Co., Ltd.
FXS4000
Contec Co., Ltd.
FXS4020
Contec Co., Ltd.
FXA3000
Contec Co., Ltd.
FXA3000-[][]
Contec Co., Ltd.
FXA3020
Contec Co., Ltd.
FXA3020-[][]
Contec Co., Ltd.
FXA3200
Contec Co., Ltd.
FXE3000
Contec Co., Ltd.
FXE3000-[][]
Contec Co., Ltd.
FXE3000-WP
Contec Co., Ltd.
FXS300[]-CN
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves relative path traversal in Contec FXA5000 series and related FX4000 and FX3000 series devices. Exploitation requires FTP access and allows an attacker to read or alter arbitrary files on the affected device's server. The CVSS v3.1 base score is 8.1, indicating high impact on confidentiality and integrity, with no impact on availability. The affected versions include all versions prior to 1.12.00 for FXA5000, prior to 1.14.00 for FX4000, and prior to 1.20.00 for FX3000 series devices. There is no information on available patches or vendor advisories.
Potential Impact
Successful exploitation can lead to unauthorized disclosure and modification of files on the device, compromising confidentiality and integrity. This could allow attackers to manipulate device behavior or extract sensitive information. Availability is not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict FTP access to trusted users only and monitor for unauthorized access attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jpcert
- Date Reserved
- 2026-08-31T02:30:58.276Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa79bfd55bf5e2cf5ac9d6a
Added to database: 09/14/2026, 07:02:21 UTC
Last enriched: 09/14/2026, 07:33:00 UTC
Last updated: 09/15/2026, 03:20:43 UTC
Views: 15
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