CVE-2026-82771

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% 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-79

Description

Cross-site scripting vulnerability exists in Contec EC1000 series. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser.

Affected products

Contec Co., Ltd. ECE1000: before 1.02 — fixed in 1.02
Contec Co., Ltd. ECE1020: before 1.02 — fixed in 1.02
Contec Co., Ltd. ECS1020: before 1.02 — fixed in 1.02

How to fix

Upgrade to a fixed version: Contec Co., Ltd. ECE1000 1.02; Contec Co., Ltd. ECE1020 1.02; Contec Co., Ltd. ECS1020 1.02. 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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