What’s Vulnerable › Vulnerabilities
CVE-2020-37220: Huawei HG630 V2 Router Authentication Bypass via Serial Number
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-13 · updated 2026-06-17
- Weakness: 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.
Affected products
References
- https://www.exploit-db.com/exploits/48310
- https://www.vulncheck.com/advisories/huawei-hg630-v2-router-authentication-bypass-via-serial-number
- https://www.youtube.com/watch?v=vOrIL7L_cVc
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