Thecus N4800Eco Nas Server Control Panel - Command Injection | Advisories

Advisories

Thecus N4800Eco Nas Server Control Panel - Command Injection

severity: medium
date: January 16, 2026
Affecting: Thecus N4800Eco Nas Server Control Panel N4800Eco
CVE: CVE-2021-47816
CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS: 5.3
CVSS V4 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
References: ExploitDB-49926
Thecus Official Vendor Homepage
Thecus N4800Eco Product Page
Researcher Blog
Credit: Metin Yunus Kandemir
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.