THREATPORT/VULNERABILITY/CVE-2020-3330
CRITICAL SEVERITY

CVE-2020-3330

Rv110w Wireless N Vpn Firewall Firmware vulnerability

CVSS
9.8
EPSS
3.4%
EPSS pct
88th
Exploited
No known
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.
Affected vendor
Cisco
Affected product
Rv110w Wireless N Vpn Firewall Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-798 — Use of Hard-coded Credentials
Published
2020-07-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2020-3330

  • Confirm whether Cisco Rv110w Wireless N Vpn Firewall Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-3330.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-3330

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-3330 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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