nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2020-37220 CVE-2020-37220
HIGH
Huawei HG630 V2 Router Authentication Bypass via Serial Number
Record summary
CVE-2020-37220 has a selected CVSS score of 8.7 (high); EIP currently links 1 catalogued exploit.
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.
Description source: CVE List
Exploitation context
Available material
- Catalogued exploits
- 1
CISA SSVC decision
ExploitationPoC
AutomatableYes
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated May 14, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
HG630 V2 RouterBrowse www.huawei.com / HG630 V2 Router | CVE List | Version range not supplied | affected |
Proofs of concept
1Catalogued exploits
ExploitDBHuawei HG630 2 Router - Authentication BypassExploitDB exploitby Eslam MedhatNot analyzed1 file
References
4ExploitDB-48310exploit
https://www.exploit-db.com/exploits/48310 VulnCheck Advisory: Huawei HG630 V2 Router Authentication Bypass via Serial NumberThird-party advisory
https://www.vulncheck.com/advisories/huawei-hg630-v2-router-authentication-bypass-via-serial-number ReferenceThird-party advisory
https://www.youtube.com/watch?v=vOrIL7L_cVc