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TI-2020-03000 Aliases CVE-2020-3453GHSA-4w5g-66r3-886x

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

Priority LOW 36CWE-119Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03083 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Small Business RV Series Router Firmwareall versions—No fix listedCNA
  • Cisco Small Business RV Series Router Firmware VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*before 1.0.03.19VulnerableCisco
cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*before 1.0.03.19VulnerableCisco
cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*before 1.0.03.19VulnerableCisco
cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*before 1.0.03.19VulnerableCisco
cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:* Versions before 1.0.03.19 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:* Versions before 1.0.03.19 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:* Versions before 1.0.03.19 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:* Versions before 1.0.03.19 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Cisco Small Business RV Series Router Firmware — 20200902 Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2020-02998 Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution VulnerabilitiesPriority LOW 26
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3453
  2. 2026-10-03 Alias added: GHSA-4w5g-66r3-886x

References

Advisory 2

  • TI-2025-23504 Erlang/OTP SSH Vulnerable to Pre-Authentication RCE KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-05267 Cisco Small Business RV Series Routers Vulnerabilities KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-05262 Cisco Small Business RV Series Routers Vulnerabilities KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-05260 Cisco Small Business RV Series Routers Vulnerabilities KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-05259 Cisco Small Business RV Series Routers Vulnerabilities KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-05258 Cisco Small Business RV Series Routers Vulnerabilities KEVCVSS 3.1CRITICAL 10.0
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences