Read the docs
TI-2018-13075 Aliases CVE-2018-18489GHSA-6cv2-23h8-f75x

The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9…

Priority LOW 26Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01742 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:wr840n_firmware:3.16.9:*:*:*:*:*:*:*3.16.9VulnerableTP-Link
cpe:2.3:h:tp-link:wr840n:2:*:*:*:*:*:*:*2Running onTP-Link
  • cpe:2.3:o:tp-link:wr840n_firmware:3.16.9:*:*:*:*:*:*:* Versions 3.16.9 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:wr840n:2:*:*:*:*:*:*:* Versions 2 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-18489
  2. 2026-10-03 Alias added: GHSA-6cv2-23h8-f75x

References

Exploit 1

  • TI-2020-18081 A password-disclosure issue in the web interface on certain TP-Link devices allows a… CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences