CVE-2020-28188

Name: CVE-2020-28188
Creator: NVD / NIST
Published: 2020-12-24T15:15:13.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 96.60%

Last modified Jun 17, 2026

CVE-2020-28188 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Remote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote unauthenticated attackers to inject OS commands via /include/makecvs.php in Event parameter.. EPSS estimates a 96.60% chance of exploitation in the next 30 days.

Description

Remote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote unauthenticated attackers to inject OS commands via /include/makecvs.php in Event parameter.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

96.60%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Terra-Master	Tos	<= 4.2.06

References

http://packetstormsecurity.com/files/172880/TerraMaster-TOS-4.2.06-Remote-Code-Execution.html
https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/Exploit, Third Party Advisory
https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/Exploit, Third Party Advisory
https://www.terra-master.com/Vendor Advisory
http://packetstormsecurity.com/files/172880/TerraMaster-TOS-4.2.06-Remote-Code-Execution.html
https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/Exploit, Third Party Advisory
https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/Exploit, Third Party Advisory
https://www.terra-master.com/Vendor Advisory

Timeline

Published: Dec 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28188?

Remote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote unauthenticated attackers to inject OS commands via /include/makecvs.php in Event parameter.

How severe is CVE-2020-28188?

CVE-2020-28188 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 96.60% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28188?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28188?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST