Is CVE-2020-3330 actively exploited?

No active exploitation of CVE-2020-3330 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3330 be exploited remotely?

Yes. CVE-2020-3330 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3330?

CVE-2020-3330 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-3330

CWE-798Published: July 16, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability in the Telnet service of Cisco Small Business RV110W Wireless-N VPN Firewall Routers could allow an unauthenticated, remote attacker to take full control of the device with a high-privileged account. The vulnerability exists because a system account has a default and static password. An attacker could exploit this vulnerability by using this default account to connect to the affected system. A successful exploit could allow the attacker to gain full control of an affected device.

NVD Source

Technical Analysis

CVE-2020-3330 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.