CVE-2026-7786

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

Published May 29, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

Jinan USR IOT Technology Limited (PUSR) did not respond to CISA's attempts at coordination. Users of PUSR USR-W610 devices are encouraged to contact PUSR and keep their systems up to date.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Jinan Usr Iot Technology Limited (pusr)
Jinan Usr Iot Technology Limited (pusr) usr-w610 Rs232/485 To Wi-fi/ethernet Converter
Vendors & Products Jinan Usr Iot Technology Limited (pusr)
Jinan Usr Iot Technology Limited (pusr) usr-w610 Rs232/485 To Wi-fi/ethernet Converter
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter Use of Hard-coded Credentials
Weaknesses CWE-798
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
May 29, 2026, 7:31 PM
Reserved
May 4, 2026, 4:07 PM
Status
Deferred
Published
May 29, 2026, 6:17 PM
Modified
Jul 21, 2026, 6:10 PM