Is CVE-2020-37220 actively exploited?

No active exploitation of CVE-2020-37220 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-37220 be exploited remotely?

Yes. CVE-2020-37220 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-37220?

CVE-2020-37220 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2020-37220

CWE-798Published: May 13, 2026· Updated: May 13, 2026

7.5

CVSS v3.1

EPSS:0.13%probability of exploitation in 30 daysPercentile:31.7th

Official 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 login to the router.

NVD Source

Technical Analysis

CVE-2020-37220 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.