Critical 9.2Published Oct 31, 2025

CVE-2025-64385INCORRECT SECURITY VALIDATION IN SENDING UDP FRAMES

Updated under an hour ago (Oct 26, 2026, 4:20 PM ET)

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It affects Circutor TCPRS1plus. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Circutor TCPRS1plus

Exploited in the last 30 days

The equipment initially can be configured using the manufacturer's application, by Wi-Fi, by the web server or with the manufacturer’s software. Using the manufacturer's software, the device can be configured via UDP. Analyzing this communication, it has been observed that any aspect of the initial configuration can be changed by means of the device's MAC without the need for authentication.

CVSS: 9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: S21sec
NVD analysis: Deferred
Record last updated: Nov 3, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Circutor TCPRS1plus circutor:tcprs1plus (from the name)	1.0.14	CNA record

References

References

https://cds.thalesgroup.com/es/s21sec
https://circutor.com/productos/iot-industrial-y-automatizacion/conversores-y-pasarelas/product/D80010./	product
https://www.hackrtu.com/blog/cg-0day-en-003/	technical-description

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.