What’s Vulnerable › Vulnerabilities

CVE-2026-82762

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-16
• Weakness: CWE-78

Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.

Affected products

• Contec Co., Ltd. FXA3000: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXA3000-[][]: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXA3020: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXA3020-[][]: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXA3200: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXA5000: before 1.12.00 — fixed in 1.12.00
• Contec Co., Ltd. FXA5020: before 1.12.00 — fixed in 1.12.00
• Contec Co., Ltd. FXA5020-[][]: before 1.12.00 — fixed in 1.12.00
• Contec Co., Ltd. FXE3000: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXE3000-[][]: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXE3000-WP: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXE4000: before 1.14.00 — fixed in 1.14.00
• Contec Co., Ltd. FXE4000-WP: before 1.14.00 — fixed in 1.14.00
• Contec Co., Ltd. FXE5000: before 1.12.00 — fixed in 1.12.00
• Contec Co., Ltd. FXE5000-[][]: before 1.12.00 — fixed in 1.12.00
• Contec Co., Ltd. FXS300[]-CN: before 1.20.00 — fixed in 1.20.00
• Contec Co., Ltd. FXS4000: before 1.14.00 — fixed in 1.14.00
• Contec Co., Ltd. FXS4020: before 1.14.00 — fixed in 1.14.00
• Contec Co., Ltd. FXS5000-[][]: before 1.12.00 — fixed in 1.12.00
• Contec Co., Ltd. FXS5021: before 1.12.00 — fixed in 1.12.00

How to fix

Upgrade to a fixed version: Contec Co., Ltd. FXA3000 1.20.00; Contec Co., Ltd. FXA3000-[][] 1.20.00; Contec Co., Ltd. FXA3020 1.20.00; Contec Co., Ltd. FXA3020-[][] 1.20.00; Contec Co., Ltd. FXA3200 1.20.00; Contec Co., Ltd. FXA5000 1.12.00; Contec Co., Ltd. FXA5020 1.12.00; Contec Co., Ltd. FXA5020-[][] 1.12.00; Contec Co., Ltd. FXE3000 1.20.00; Contec Co., Ltd. FXE3000-[][] 1.20.00; Contec Co., Ltd. FXE3000-WP 1.20.00; Contec Co., Ltd. FXE4000 1.14.00. Check the vendor advisory for mitigations.

References

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

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