CVE-2018-18489

Name: CVE-2018-18489
Creator: NVD / NIST
Published: 2019-04-16T19:29:00.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.77%

Last modified Jun 17, 2026

CVE-2018-18489 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.77%

75.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Tp-Link	Wr840n Firmware	3.16.9

References

https://youtu.be/VGNEYWR9MgYExploit, Third Party Advisory
https://youtu.be/VGNEYWR9MgYExploit, Third Party Advisory

Timeline

Published: Apr 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18489?

How severe is CVE-2018-18489?

Severity scoring for CVE-2018-18489 is pending analysis. The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18489?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18489?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST