CVEvulnerability

CVE-2023-20118

7.2 HIGH Known exploited Published 2023-04-13 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Cisco Small Business RV Series Routers Command Injection Vulnerability — Cisco Small Business RV Series Routers

Multiple Cisco Small Business RV Series Routers contains a command injection vulnerability in the web-based management interface. Successful exploitation could allow an authenticated, remote attacker to gain root-level privileges and access unauthorized data.

Added to KEV: 2025-03-03
Remediation due: 2025-03-24
Ransomware use: Unknown
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5 ; https://nvd.nist.gov/vuln/detail/CVE-2023-20118

Status: Analyzed
Published: 2023-04-13
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected]): 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-77

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"])}]]

Affected configurations

• cisco rv016 firmware • cisco rv042 firmware • cisco rv042g firmware • cisco rv082 firmware • cisco rv320 firmware • cisco rv325 firmware

Weakness · CWE (1)

CWE-77 Improper Neutralization of Special Elements used in a Command weakness

References