CVE-2020-29189

Incorrect Access Control vulnerability in TerraMaster TOS <= 4.2.06 allows remote authenticated attackers to bypass read-only restriction and obtain full access to any folder within the NAS

CVSS v3.1

8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v2.0

5.5 MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:N

EPSS

1.86% chance of exploitation in the next 30 days, 78th percentile

Published

2020-12-24

Updated

2026-07-09

Proof-of-concept exploits (1)

• https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/

References

• CVE Record
• NVD entry

Related

• CVE-2020-29168
• CVE-2020-29203
• CVE-2020-29166
• CVE-2020-29204
• CVE-2020-29165
• CVE-2020-29205