Vulnerability Details : CVE-2023-20118

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"])}]]
Published 2023-04-13 07:15:21
Updated 2025-04-02 20:31:59
Source Cisco Systems, Inc.
View at NVD,   CVE.org

Products affected by CVE-2023-20118

CVE-2023-20118 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Cisco Small Business RV Series Routers Command Injection Vulnerability
CISA 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.
CISA description:
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.
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
Added on 2025-03-03 Action due date 2025-03-24

Exploit prediction scoring system (EPSS) score for CVE-2023-20118

EPSS FAQ
3.55%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-20118

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.5
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
N/A
N/A
 Cisco:cisco-sa-sbr042-multi-vuln-ej76Pke5 2025-03-07
7.2
 HIGH CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
1.2
5.9
 NIST
6.5
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
1.2
5.2
 Cisco Systems, Inc. 2025-03-04
6.5
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
1.2
5.2
 Cisco Systems, Inc.

CWE ids for CVE-2023-20118

  • The 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.
    Assigned by: nvd@nist.gov (Primary)
  • 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.
    Assigned by:
    • nvd@nist.gov (Primary)
    • psirt@cisco.com (Secondary)
    • ykramarz@cisco.com (Secondary)

References for CVE-2023-20118

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