CVE-2026-25715: Jinan USR IOT Technology Limited (PUSR) USR-W610 Weak Password Requirements

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-20 · updated 2026-06-17
Weakness: CWE-521

Description

The web management interface of the device allows the administrator username and password to be set to blank values. Once applied, the device permits authentication with empty credentials over the web management interface and Telnet service. This effectively disables authentication across all critical management channels, allowing any network-adjacent attacker to gain full administrative control without credentials.

Affected products

Jinan USR IOT Technology Limited (PUSR) USR-W610: through 3.1.1.0

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-03.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-050-03

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