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.
Published 2019-04-16 19:29:00
Updated 2020-08-24 17:37:01
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2018-18489

0.15%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-18489

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:L/Au:S/C:N/I:N/A:C
8.0
6.9
NIST
4.9
MEDIUM CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
1.2
3.6
NIST

References for CVE-2018-18489

  • https://youtu.be/VGNEYWR9MgY
    DoS | TP Link 300M Wireless N Router | Model No. TL-WR840N / TL-WR840ND - YouTube
    Exploit;Third Party Advisory

Products affected by CVE-2018-18489

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