CVE-2021-46122: TP-Link Tl-WR840N Firmware

High severity, CVSS 7.2. EPSS: 1.6% chance of exploitation in the next 30 days.

Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature.

Affected products

• TP-Link Tl-WR840N Firmware: version 0.9.1_4.17_v0001.0 only

Published 2022-04-18. Last modified 2026-06-17.