CVE-2020-3451

Name: CVE-2020-3451
Creator: NVD / NIST
Published: 2020-09-04T03:15:10.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 2.17%

Last modified Jun 17, 2026

CVE-2020-3451 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.. EPSS estimates a 2.17% chance of exploitation in the next 30 days.

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

2.17%

80.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Rv340w Firmware	< 1.0.03.19
Cisco	Rv340 Firmware	< 1.0.03.19
Cisco	Rv345 Firmware	< 1.0.03.19
Cisco	Rv345p Firmware	< 1.0.03.19

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJvVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1100/Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJvVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1100/Third Party Advisory, VDB Entry

Timeline

Published: Sep 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-3451?

How severe is CVE-2020-3451?

CVE-2020-3451 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 2.17% probability of exploitation in the next 30 days.

How do I fix CVE-2020-3451?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-3451?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST