CVE-2017-18374

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has two user accounts with default passwords, including a hardcoded service account with the username true and password true. These accounts can be used to login to the web interface, exploit authenticated command injections and change router settings for malicious purposes.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-798

Affected software

No affected versions have been published.

Timeline

Published: May 2, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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