CVE-2026-7786

CRITICAL 9.8

Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter Use of Hard-coded Credentials

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter device firmware contains plaintext administrative credentials embedded in the firmware image. These credentials can be extracted through firmware analysis and used to authenticate to device services.

CWE	CWE-798
Vendor	jinan usr iot technology limited (pusr)
Product	usr-w610 rs232/485 to wi-fi/ethernet converter
Published	May 29, 2026
Last Updated	May 29, 2026

Stay Ahead of the Next One

Get instant alerts for jinan usr iot technology limited (pusr) usr-w610 rs232/485 to wi-fi/ethernet converter

Be the first to know when new critical vulnerabilities affecting jinan usr iot technology limited (pusr) usr-w610 rs232/485 to wi-fi/ethernet converter are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Jinan USR IOT Technology Limited (PUSR) / USR-W610 RS232/485 to Wi-Fi/Ethernet Converter

7.03T.07

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-02 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-148-02.json

Credits

Arun Mane and Omkar Mali reported this vulnerability to CISA.