CVE-2023-20026: cisco cisco small business rv series router firmware Command Injection

Vulnerability summary

CVE-2023-20026 is a high (CVSS 7.2) Command Injection vulnerability in cisco cisco small business rv series router firmware. EPSS estimates a 1.30% chance of exploitation in the next 30 days, higher than 70.1% of scored vulnerabilities.

Timeline

1. 19-01-2023
   PublishedVulnerability first disclosed.
2. 12-03-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability in the web-based management interface of Cisco Small Business 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.

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.