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Critical · 9.0 Public exploit CVE-2023-20025 EUVD-2023-24204GHSA-q4cw-h889-p6jj

A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauth…

Published Jan 19, 2023 · Updated Mar 12, 2025 · Assigned by cisco

Vendor: Cisco Product: Cisco Small Business RV Series Router Firmware Category: Network devices

Description

A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthenticated, remote attacker to bypass authentication 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 bypass authentication and gain root access on the underlying operating system.

Affected products

VendorProductAffectedFixed
Cisco Cisco Small Business RV Series Router Firmware 2.0.0.19-tm, 2.0.2.01-tm, 1.3.12.19-tm, 1.3.12.6-tm, 1.3.13.02-tm, 1.3.9.8-tm, 4.0.0.7, 4.0.2.08-tm, 4.0.3.03-tm, 4.0.4.02-tm, 4.2.1.02, 4.2.2.08, 4.2.3.03, 4.2.3.06, 4.2.3.07, 4.2.3.08, 4.2.3.09, 4.2.3.10, 4.2.3.14, 3.0.0.1-tm, 3.0.0.19-tm, 3.0.2.01-tm, 4.1.1.01, 4.1.0.02-tm —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References