VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published CVSS 4.7 mediumEPSS 2.2% probability of exploitation in 30 days
Cisco

CVE-2020-3451: Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 1 public report, the first from .

How likely is exploitation in the next 30 days?
2.2%

EPSS score, percentile 82.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
4.7 Medium

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

  • unspecified

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities

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.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)
Cisco Cisco Small Business RV Series Router Firmware
StatusVersions
Affectedunspecified

Source: CVE List, as of . About the data.

Weakness

CWE-119

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

1

Known exploited Cisco vulnerabilities

  • CVE-2026-76418: Cisco Secure Firewall ASA Software and Cisco Secure FTD Software Unchecked Return Value to NULL Pointer Dereference Vulnerability (added )
  • CVE-2026-76519: Cisco Secure Email Gateway Relative Path Traversal Vulnerability (added )
  • CVE-2026-76504: Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability (added )
  • CVE-2026-76460: Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability (added )
  • CVE-2026-76461: Cisco Secure Email Gateway SQL Injection Vulnerability (added )