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CVE-2023-20118

Cisco Small Business RV Series Routers Command Injection Vulnerability

  • Medium 6.5
  • Exploited: added to CISA KEV 3 Mar 2025

Description

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]

Key facts

Published
5 Apr 2023
Last changed
21 Oct 2025
Assigned by
cisco
KEV added
3 Mar 2025
KEV fix due
24 Mar 2025
EPSS
54.107% likely to be exploited in the next 30 days, higher than 99.024% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 6.5CVSS 3.1, Mediumfrom the CNA (cisco)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

What to do

  • Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
CiscoCisco Small Business RV Series Router Firmware
  • 1.0.1.17 (affected)
  • 1.0.2.03 (affected)
  • 1.1.0.09 (affected)
  • 1.1.1.19 (affected)
  • 1.1.1.06 (affected)
  • 1.2.1.13 (affected)
  • 1.2.1.14 (affected)
  • 1.3.1.12 (affected)
  • 1.3.2.02 (affected)
  • 1.3.1.10 (affected)
  • 1.4.2.15 (affected)
  • 1.4.2.17 (affected)
  • 1.4.2.19 (affected)
  • 1.4.2.20 (affected)
  • 1.4.2.22 (affected)
  • 1.5.1.05 (affected)
  • 1.5.1.11 (affected)
  • 1.5.1.13 (affected)

Timeline

  1. 5 Apr 2023 Published
  2. 3 Mar 2025 CVE-2023-20118 added to CISA KEV
  3. 3 Mar 2025 Added to the CISA KEV catalogue

Weakness

References