High (8.1) in terra-master tos. EPSS 8.4% chance of exploitation in the next 30 days.
In Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517), an attacker can self-sign session cookies by knowing the target's MAC address and the user's password hash. Guest users (disabled by default) can be abused using a null/empty hash and allow an unauthenticated attacker to login as guest.
Severity
CVSS 3.1
8.1 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
8.4% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-11-01)