CVE-2018-18489 json
The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n devices allows remote attacke…
published 2019-04-16 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10214
- cvss
- 4.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
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.
Exploit prediction
1.74% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- youtu.be https://youtu.be/VGNEYWR9MgY referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.9 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C |
References
-
youtu.be
/VGNEYWR9MgY
exploit, third-party-advisory
Sources
- CVE List CVE-2018-18489
- NVD CVE-2018-18489
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.