CVE-2020-28899
9.1 · CRITICALOverview
CVE-2020-28899 is a critical-severity vulnerability affecting zyxel lte4506-m606_firmware. It was published on March 16, 2021 and has a CVSS 3.1 base score of 9.1 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The Web CGI Script on ZyXEL LTE4506-M606 V1.00(ABDO.2)C0 devices does not require authentication, which allows remote unauthenticated attackers (via crafted JSON action data to /cgi-bin/gui.cgi) to use all features provided by the router. Examples: change the router password, retrieve the Wi-Fi passphrase, send an SMS message, or modify the IP forwarding to access the internal network.
Remediation
Check the references section for vendor advisories and patches from zyxel. Update lte4506-m606_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 |
|---|---|---|---|
| zyxel | lte4506-m606_firmware | >= 0, < v1.00\(abdo.6\)c0 | Affected |
| zyxel | lte7460-m608_firmware | >= 0, < v1.00\(abfr.5\)c0 | Affected |
| zyxel | wah7706_firmware | >= 0, < v1.00\(abbc.11\)c0 | Affected |
Frequently Asked Questions
What is CVE-2020-28899?
CVE-2020-28899 is a critical-severity vulnerability affecting zyxel lte4506-m606_firmware. It was published on March 16, 2021 and has a CVSS 3.1 base score of 9.1 (CRITICAL).
How severe is CVE-2020-28899?
This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-28899?
Check the references section for vendor advisories and patches from zyxel. Update lte4506-m606_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-2020-28899?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-28899 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.
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