CVE-2023-20118

MediumActively exploited (CISA KEV)

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"])}]]

SeverityMedium
CVSS6.5
Exploit probability—
ProductCisco Small Business RV Series Routers
PublishedApr 13, 2023
First seenApr 13, 2023
Added to KEVMar 3, 2025

How to fix

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 due date: Mar 24, 2025

Affected products

ProductAffected versionsFixed in
cisco rv016_firmwareNo range specified—
cisco rv042_firmwareNo range specified—
cisco rv042g_firmwareNo range specified—
cisco rv082_firmwareNo range specified—
cisco rv320_firmwareNo range specified—
cisco rv325_firmwareNo range specified—

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