CVE-2021-47816: Thecus N4800Eco Nas Server Control Panel - Command Injection

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-16 · updated 2026-06-17
Weakness: CWE-78

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.

Affected products

Thecus N4800Eco Nas Server Control Panel: N4800Eco

References

http://www.thecus.com/
http://www.thecus.com/product.php?PROD_ID=83
https://docs.unsafe-inline.com/0day/thecus-n4800eco-nas-server-control-panel-comand-injection
https://www.exploit-db.com/exploits/49926
https://www.vulncheck.com/advisories/thecus-neco-nas-server-control-panel-command-injection

Get alerted when CVE-2021-47816 or the next vulnerability affects your stack