CVE-2018-18489
4.9 · MEDIUMOverview
CVE-2018-18489 is a medium-severity vulnerability affecting tp-link wr840n_firmware. It was published on April 16, 2019 and has a CVSS 3.0 base score of 4.9 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n devices allows remote attackers to cause a denial of service (HTTP service termination) by modifying the packet size to be higher than the UI limit of 1472.
Remediation
Check the references section for vendor advisories and patches from tp-link. Update wr840n_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 |
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References
Frequently Asked Questions
What is CVE-2018-18489?
CVE-2018-18489 is a medium-severity vulnerability affecting tp-link wr840n_firmware. It was published on April 16, 2019 and has a CVSS 3.0 base score of 4.9 (MEDIUM).
How severe is CVE-2018-18489?
This vulnerability has a CVSS 3.0 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2018-18489?
Check the references section for vendor advisories and patches from tp-link. Update wr840n_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-2018-18489?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-18489 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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