CVE-2018-21123
8.8 · HIGHOverview
CVE-2018-21123 is a high-severity vulnerability affecting netgear wc7500_firmware. It was published on April 22, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects WC7500 before 6.5.3.9, WC7520 before 6.5.3.9, WC7600v1 before 6.5.3.9, and WC7600v2 before 6.5.3.9.
Remediation
Check the references section for vendor advisories and patches from netgear. Update wc7500_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| netgear | wc7500_firmware | >= 0, < 6.5.3.9 | Affected |
| netgear | wc7520_firmware | >= 0, < 6.5.3.9 | Affected |
| netgear | wc7600_firmware | >= 0, < 6.5.3.9 | Affected |
Frequently Asked Questions
What is CVE-2018-21123?
CVE-2018-21123 is a high-severity vulnerability affecting netgear wc7500_firmware. It was published on April 22, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2018-21123?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-21123?
Check the references section for vendor advisories and patches from netgear. Update wc7500_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-21123?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-21123 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2018
View all →IBM API Connect 5.0.0.0, 5.0.8.4, 2018.1 and 2018.3.6 is vulnerable to CSV injection via the develop
Craft CMS 2.6.3000 allows remote attackers to execute arbitrary PHP code by using the "Assets->Uploa
In opencv/modules/imgcodecs/src/utils.cpp, functions FillUniColor and FillUniGray do not check the i
freedesktop.org libpoppler 0.60.1 fails to validate boundaries in TextPool::addWord, leading to over
Gnome gdk-pixbuf 2.36.8 and older is vulnerable to several integer overflow in the gif_get_lzw funct
In Octopus Deploy versions 3.2.11 - 4.1.5 (fixed in 4.1.6), an authenticated user with ProcessEdit p
Commsy version 9.0.0 is vulnerable to XXE attacks in the configuration import functionality resultin
phpMyAdmin versions 4.7.x (prior to 4.7.6.1/4.7.7) are vulnerable to a CSRF weakness. By deceiving a
pfSense versions 2.4.1 and lower are vulnerable to clickjacking attacks in the CSRF error page resul
IBM Tivoli Key Lifecycle Manager 2.6 and 2.7 is vulnerable to cross-site request forgery which could
Inteno iopsys 2.0-3.14 and 4.0 devices allow remote authenticated users to execute arbitrary OS comm
Xplico before 1.2.1 allows remote authenticated users to execute arbitrary commands via shell metach