CVE-2021-28150: Hongdian h8922 Firmware

Medium severity, CVSS 5.5. EPSS: 2.8% chance of exploitation in the next 30 days.

Hongdian H8922 3.0.5 devices allow the unprivileged guest user to read cli.conf (with the administrator password and other sensitive data) via /backup2.cgi.

Affected products

• Hongdian h8922 Firmware: version 3.0.5 only

Published 2021-05-06. Last modified 2026-06-17.