CVE-2023-49255: Hongdian h8951-4g-Esp Firmware

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The router console is accessible without authentication at "data" field, and while a user needs to be logged in in order to modify the configuration, the session state is shared. If any other user is currently logged in, the anonymous user can execute commands in the context of the authenticated one. If the logged in user has administrative privileges, it is possible to use webadmin service configuration commands to create a new admin user with a chosen password.

Affected products

• Hongdian h8951-4g-Esp Firmware: before 2310271149 (fixed in 2310271149)

Published 2024-01-12. Last modified 2026-06-17.