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HIGH

CVE-2020-29189

CVSS v3

8.1

HIGH

EPSS Score

1.9 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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

Technical details

Published
2020-12-24

Frequently asked questions

What is 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

Is CVE-2020-29189 actively exploited?

Active exploitation of CVE-2020-29189 has not been confirmed. Its EPSS score was 1.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-29189?

CVE-2020-29189 has a CVSS v3 base score of 8.1 (HIGH severity).

Is CVE-2020-29189 affecting your environment?

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