CVE-2020-37220
Huawei HG630 V2 Router Authentication Bypass via Serial Number
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Huawei HG630 V2 router contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain administrative access by retrieving the device serial number. Attackers can query the /api/system/deviceinfo endpoint without authentication to extract the SerialNumber field, then use the last 8 characters as the default password to log in to the router.
| CWE | CWE-798 |
| Vendor | www.huawei.com |
| Product | hg630 v2 router |
| Published | May 13, 2026 |
| Last Updated | May 26, 2026 |
Stay Ahead of the Next One
Get instant alerts for www.huawei.com hg630 v2 router
Be the first to know when new high vulnerabilities affecting www.huawei.com hg630 v2 router 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:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
www.huawei.com / HG630 V2 Router
0
References
Credits
Eslam Medhat