---
cve: "CVE-2020-37220"
severity: "HIGH"
cvss: 8.7
epss: "36%"
vendor: "www.huawei.com"
kev: false
exploited: false
published: "2026-05-13 16:16:33"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T00:31:08+02:00"
---

# CVE-2020-37220

> 8.7 HIGH · 🧪 PoC

## Beschreibung

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-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://www.exploit-db.com/exploits/48310>
- <https://www.youtube.com/watch?v=vOrIL7L_cVc>
- <https://www.vulncheck.com/advisories/huawei-hg630-v2-router-authentication-bypass-via-serial-number>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-37220) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_