What is CVE-2019-18383?

CVE-2019-18383 is a high-severity vulnerability in Terra-Master Fs-210, classified under Missing Authorization. CVSS score: 7.5/10. Published 2019-10-23.

How severe is CVE-2019-18383?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Terra-Master Fs-210

CVE-2019-18383

An issue was discovered on TerraMaster FS-210 4.0.19 devices. One can download backup files remotely from terramaster_TNAS-00E43A_config_backup.bin without permission.

Vulnerability class: Broken Access Control

Published 2019-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.016 (74.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Terra-Master Fs-210
Terra-Master Fs-210 Firmware — versions 4.0.19

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/gusrmsdlrh/CVE-Reserved/blob/master/README.md (Third Party Advisory)

Frequently asked questions

What is CVE-2019-18383?: CVE-2019-18383 is a high-severity vulnerability in Terra-Master Fs-210, classified under Missing Authorization. CVSS score: 7.5/10. Published 2019-10-23.
How severe is CVE-2019-18383?: High severity. CVSS v3 base score is 7.5 out of 10.