CVE-2021-47816

medium

Description

Thecus N4800Eco NAS Server Control Panel contains a command injection vulnerability that allows authenticated attackers to execute arbitrary system commands through user management endpoints. Attackers can inject commands via username and batch user creation parameters to execute shell commands with administrative privileges.

References

https://www.vulncheck.com/advisories/thecus-neco-nas-server-control-panel-command-injection

https://www.exploit-db.com/exploits/49926

https://docs.unsafe-inline.com/0day/thecus-n4800eco-nas-server-control-panel-comand-injection

http://www.thecus.com/product.php?PROD_ID=83

http://www.thecus.com/

Details

Source: Mitre, NVD

Published: 2026-01-16

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00165