Vulnerability Database

322,907

Total vulnerabilities in the database

CVE-2021-46122

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.

  • Published: Apr 18, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-46122
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.2
  • AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 9
  • AV:N/AC:L/Au:S/C:C/I:C/A:C

CWEs:

Software From Fixed in
tp-link / tl-wr840n_firmware 0.9.1_4.17_v0001.0-build_201124_rel.64328n 0.9.1_4.17_v0001.0-build_201124_rel.64328n.x