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Vulnerability record · CVE-2018-0423 · published 5 October 2018

CVE-2018-0423: Cisco rv110w firmware memory buffer overflow vulnerability

Cisco · Rv110w Firmware

A vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to cause a denial of service condition or to execute arbitrary code. The vulnerability is due to improper boundary restrictions on user-supplied input in the Guest user feature of the web-based management interface. An attacker could exploit this vulnerability by sending malicious requests to a targeted device, triggering a buffer overflow condition. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a denial of service condition, or could allow the attacker to execute arbitrary code.

8.1 CVSS 3.0 High EPSS 6.8% · top 6.2% CWE-119 · Memory buffer overflow
8.1CVSS 3.0 base score, v2 9.3
6.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to cause a denial of service condition or to execute arbitrary code. The vulnerability is due to improper boundary restrictions on user-supplied input in the Guest user feature of the web-based management interface. An attacker could exploit this vulnerability by sending malicious requests to a targeted device, triggering a buffer overflow condition. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a denial of service condition, or could allow the attacker to execute arbitrary code.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-0683Cisco rv110w firmware vulnerabilityThe web management interface on the Cisco RV110W firewall with firmware 1.2.0.9 and earlier, RV215W router with firmware 1.1.0.5 and earlier, and CVR…EPSS 10%9.8CVE-2022-20923Cisco rv110w firmware improper authentication vulnerabilityA vulnerability in the IPSec VPN Server authentication functionality of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an…EPSS 1.0%9.8CVE-2022-20825Cisco rv110w firmware stack-based buffer overflow vulnerabilityA vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticate…EPSS 3.2%9.8CVE-2021-1459Cisco rv110w firmware memory buffer overflow vulnerabilityA vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticate…EPSS 3.0%9.8CVE-2020-3144Cisco rv110w firmware improper access control vulnerabilityA vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, RV130 VPN Router, RV130W Wireless-N Multifunction …EPSS 2.9%9.8CVE-2019-1663Cisco RV110W/RV130W/RV215W web management interface buffer overflow RCEThe web-based management interface of the Cisco RV110W, RV130W and RV215W routers fails to properly validate user-supplied data, allowing an out-of-b…EPSS 96%analysed9.8CVE-2018-0425Cisco rv110w firmware information exposure vulnerabilityA vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, …EPSS 3.4%9.8CVE-2018-0426Cisco rv110w firmware path traversal vulnerabilityA vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, …EPSS 6.4%

Source: NIST National Vulnerability Database (record CVE-2018-0423), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.