VULNERABILITY INTELLIGENCE

CVE-2021-41653

CVSS score9.8 CRITICAL

EPSS probability76.05%

CISA KEVNot currently listed

Published2021-11-13

Last modified2026-07-09

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.

Weakness classification

nvd@nist.gov: CWE-94

Primary references

cve@mitre.org — Exploit, Third Party Advisory
cve@mitre.org — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory