CVE-2026-38577

Published Aug 31, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
Insecure hardcoded credentials in the Admin account of Tenda HG21 V4.0.0-260302 allows attackers to gain root access.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Hardcoded Admin Credentials Grant Root Access in Tenda HG21 Router Firmware
Type Values Removed Values Added
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'}

ssvc

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

Type Values Removed Values Added
First Time appeared Tenda
Tenda hg21
Vendors & Products Tenda
Tenda hg21
Type Values Removed Values Added
Title Hardcoded Admin Credentials Grant Root Access in Tenda HG21 Router Firmware
Weaknesses CWE-798
Type Values Removed Values Added
Description Insecure hardcoded credentials in the Admin account of Tenda HG21 V4.0.0-260302 allows attackers to gain root access.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 1, 2026, 2:40 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
Aug 31, 2026, 9:17 PM
Modified
Sep 1, 2026, 9:00 PM