CVE-2020-37220
Huawei HG630 V2 Router Authentication Bypass via Serial Number
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 8.7EPSS 0.4%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
13 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
www.huawei.com · HG630 V2 Routerpublic PoCs found — 1
cve_referencewww.exploit-db.com/exploits/48310unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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