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Vulnerability record · CVE-2020-3330 · published 16 July 2020

CVE-2020-3330: Cisco rv110w wireless-n vpn firewall firmware hard-coded credentials vulnerability

Cisco · Rv110w Wireless N Vpn Firewall Firmware

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.

9.8 CVSS 3.1 Critical EPSS 3.4% · top 11.5% CWE-798 · Hard-coded credentials
9.8CVSS 3.1 base score, v2 10.0
3.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv110w-static-cred-BMTWBWTy Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv110w-static-cred-BMTWBWTy Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-34730Cisco application extension platform stack-based buffer overflow vulnerabilityA vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauth…EPSS 19%9.8CVE-2020-3323Cisco rv110w wireless-n vpn firewall firmware memory buffer overflow vulnerabilityA vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticate…EPSS 5.7%9.8CVE-2020-3331Cisco rv110w wireless-n vpn firewall firmware memory buffer overflow vulnerabilityA vulnerability in the web-based management interface of Cisco RV110W Wireless-N VPN Firewall and Cisco RV215W Wireless-N VPN Router could allow an u…EPSS 42%9.8CVE-2016-1395Cisco rv130w wireless-n multifunction vpn router firmware improper input validation vulnerabilityThe web-based management interface on Cisco RV110W devices with firmware before 1.2.1.7, RV130W devices with firmware before 1.0.3.16, and RV215W dev…EPSS 4.8%8.8CVE-2020-3332Cisco rv110w wireless-n vpn firewall firmware os command injection vulnerabilityA vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Series Routers could allow an authent…EPSS 3.2%8.8CVE-2020-3146Cisco rv110w wireless-n vpn firewall firmware memory buffer overflow vulnerabilityMultiple vulnerabilities in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, RV130 VPN Router, RV130W Wireless-N Multi…EPSS 2.9%8.8CVE-2015-6397Cisco rv110w wireless-n vpn firewall firmware improper authentication vulnerabilityCisco RV110W, RV130W, and RV215W devices have an incorrect RBAC configuration for the default account, which allows remote authenticated users to obt…EPSS 2.3%7.8CVE-2015-6396Cisco rv110w wireless-n vpn firewall firmware os command injection vulnerabilityThe CLI command parser on Cisco RV110W, RV130W, and RV215W devices allows local users to execute arbitrary shell commands as an administrator via cra…EPSS 1.9%

Source: NIST National Vulnerability Database (record CVE-2020-3330), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.