CVE-2021-28858: TP-Link Tl-WPA4220 Firmware

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

TP-Link's TL-WPA4220 4.0.2 Build 20180308 Rel.37064 does not use SSL by default. Attacker on the local network can monitor traffic and capture the cookie and other sensitive information.

Affected products

• TP-Link Tl-WPA4220 Firmware: version 4.0.2 only

Published 2021-06-15. Last modified 2026-06-17.