QSearchQSearch

CVE-2020-37220

7.5 HIGH

Huawei HG630 V2 router contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain administrative acc...

Published: 2026-05-13 · Last updated: 2026-05-26

Severity and scoring

CVSS
7.5 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
CWE-798

Description

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: NVD

References

Related CVEs

Same CWE

  • CVE-2026-22312 The device has a webserver that exposes a REST API authenticated with a constant token (8.6 HIGH)
  • CVE-2026-50083 The Aqara IAM/SSO Gateway (gw-builder.aqara.com) used a hardcoded OAuth client credential, which is an instance of "CWE-798: Use of Hard-... (9.1 CRITICAL)
  • CVE-2026-10557 The Yarbo Android and iOS applications contain hard-coded MQTT broker credentials that are identical for all users and all devices (9.8 CRITICAL)
  • CVE-2026-11849 The  iRM-IEI Remote Management developed by IEI Integration Corp has a Hardcoded Credentials vulnerability, allowing unauthenticated remo... (9.8 CRITICAL)
  • CVE-2026-47281 Improper input validation in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network (9.6 CRITICAL)