Is CVE-2021-45836 actively exploited?

No active exploitation of CVE-2021-45836 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-45836 be exploited remotely?

Yes. CVE-2021-45836 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-45836?

CVE-2021-45836 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2021-45836

HIGH

CVE-2021-45836

NVD-CWE-noinfoPublished: April 25, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

An authenticated attacker can execute arbitrary commands as root in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) by injecting a maliciously crafted input in the request through /tos/index.php?app/hand_app.

NVD Source

Technical Analysis

CVE-2021-45836 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.