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Vulnerability record · CVE-2018-9285 · published 4 April 2018

CVE-2018-9285: Asus rt-ac66u firmware os command injection vulnerability

Asus · Rt Ac66u Firmware

Main_Analysis_Content.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.384_10007; RT-N18U devices before 3.0.0.4.382.39935; RT-AC87U and RT-AC3200 devices before 3.0.0.4.382.50010; and RT-AC5300 devices before 3.0.0.4.384.20287 allows OS command injection via the pingCNT and destIP fields of the SystemCmd variable.

9.8 CVSS 3.0 Critical EPSS 3.6% · top 11.1% CWE-78 · OS command injection
9.8CVSS 3.0 base score, v2 10.0
3.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Main_Analysis_Content.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.384_10007; RT-N18U devices before 3.0.0.4.382.39935; RT-AC87U and RT-AC3200 devices before 3.0.0.4.382.50010; and RT-AC5300 devices before 3.0.0.4.384.20287 allows OS command injection via the pingCNT and destIP fields of the SystemCmd variable.

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

Affected products

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

References

LinkTags
http://packetstormsecurity.com/files/160049/ASUS-TM-AC1900-Arbitrary-Command-Execution.html
https://fortiguard.com/zeroday/FG-VD-17-216 Third Party Advisory
https://www.fortinet.com/blog/threat-research/fortiguard-labs-discovers-vulnerability-in-asus-router.html Third Party Advisory
http://packetstormsecurity.com/files/160049/ASUS-TM-AC1900-Arbitrary-Command-Execution.html
https://fortiguard.com/zeroday/FG-VD-17-216 Third Party Advisory
https://www.fortinet.com/blog/threat-research/fortiguard-labs-discovers-vulnerability-in-asus-router.html Third Party Advisory

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Related vulnerabilities

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

9.8CVE-2021-45756Asus rt-ac68u firmware classic buffer overflow vulnerabilityAsus RT-AC68U <3.0.0.4.385.20633 and RT-AC5300 <3.0.0.4.384.82072 are affected by a buffer overflow in blocking_request.cgi.EPSS 1.2%9.8CVE-2018-14714Asus rt-ac3200 firmware vulnerabilitySystem command injection in appGet.cgi on ASUS RT-AC3200 version 3.0.0.4.382.50010 allows attackers to execute system commands via the "load_script" …EPSS 27%9.8CVE-2018-8826Asus rt-ac51u firmware improper input validation vulnerabilityASUS RT-AC51U, RT-AC58U, RT-AC66U, RT-AC1750, RT-ACRH13, and RT-N12 D1 routers with firmware before 3.0.0.4.380.8228; RT-AC52U B1, RT-AC1200 and RT-N…EPSS 4.3%9.0CVE-2021-43702Asus zenwifi xd4s firmware cross-site scripting vulnerabilityASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS). The ASUS router admin panel does not sanitize the WiFI logs correctly, if…EPSS 0.98%8.1CVE-2018-14713Asus rt-ac3200 firmware vulnerabilityFormat string vulnerability in appGet.cgi on ASUS RT-AC3200 version 3.0.0.4.382.50010 allows attackers to read arbitrary sections of memory and CPU r…EPSS 3.8%7.5CVE-2021-3128Asus zenwifi ax \(xt8\) firmware vulnerabilityIn ASUS RT-AX3000, ZenWiFi AX (XT8), RT-AX88U, and other ASUS routers with firmware < 3.0.0.4.386.42095 or < 9.0.0.4.386.41994, when IPv6 is used, a …EPSS 2.2%6.5CVE-2018-14711Asus rt-ac3200 firmware cross-site request forgery vulnerabilityMissing cross-site request forgery protection in appGet.cgi on ASUS RT-AC3200 version 3.0.0.4.382.50010 allows attackers to cause state-changing acti…EPSS 0.57%6.5CVE-2018-14712Asus rt-ac3200 firmware memory buffer overflow vulnerabilityBuffer overflow in appGet.cgi on ASUS RT-AC3200 version 3.0.0.4.382.50010 allows attackers to inject system commands via the "hook" URL parameter.EPSS 4.1%

Source: NIST National Vulnerability Database (record CVE-2018-9285), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.