CVE-2021-45839: TerraMaster Tos

Medium severity, CVSS 6.5. EPSS: 9.9% chance of exploitation in the next 30 days.

It is possible to obtain the first administrator's hash set up on the system in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) as well as other information such as MAC address, internal IP address etc. by performing a request to the /module/api.php?mobile/webNasIPS endpoint.

Affected products

• TerraMaster Tos: version 4.2.15-2107141517 only

Published 2022-04-25. Last modified 2026-06-17.