High (7.5) in TerraMaster TerraMaster OS. In CISA KEV since 2023-02-10, with known ransomware use. EPSS 83% chance of exploitation in the next 30 days.
TerraMaster NAS 4.2.29 and earlier allows remote attackers to discover the administrative password by sending "User-Agent: TNAS" to module/api.php?mobile/webNasIPS and then reading the PWD field in the response.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
83% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV
listed 2023-02-10, due 2023-03-03, known ransomware use