CVE-2018-18489

4.9 mediumEPSS 1.7%

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.

Severity

CVSS 3.0

4.9 medium

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

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
Published: 2019-04-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tp-link:wr840n_firmware

References

https://youtu.be/VGNEYWR9MgY
https://youtu.be/VGNEYWR9MgY

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