CVE-2020-37220 — Huawei HG630 V2 Router Authentication Bypass via Serial Number
Huawei HG630 V2 router contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain administrative access by retrieving the device serial numb…
Published: 2026-05-13 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7