Is CVE-2020-3330 in the CISA KEV catalog?

No. CVE-2020-3330 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2020-3330 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-3330?

CVE-2020-3330 has an EPSS score of 3.44% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-3330?

Upgrade rv110w wireless-n vpn firewall firmware to 1.2.2.8 or later.

CVE & CISA-KEV Catalog

CVE-2020-3330

CRITICALEPSS 88th pctl

9.8

CVSS v3

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.

CWE-798Hard-coded Credentials

How to fix

Remediation Available

rv110w wireless-n vpn firewall firmwareNVD

Affected:< 1.2.2.8Fixed in:1.2.2.8CVE-2020-3330derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.44%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

Related Vulnerabilities

Other CWE-798 (Hard-coded Credentials) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26138	Critical	9.8	98%	KEV	-
CVE-2024-3272	Critical	9.8	98%	KEV	-
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2024-28987	Critical	9.1	93%	KEV	Fix
CVE-2019-15976	Critical	9.8	93%	-	Fix
CVE-2024-20439	Critical	9.8	92%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.