PT-2026-3274 · Thecus · Thecus N4800Eco Nas Server

Published 2026-01-16 · Updated 2026-01-16 · CVE-2021-47816

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Thecus N4800Eco NAS Server versions (affected versions not specified)

Description An authenticated attacker can execute arbitrary system commands through user management endpoints. The issue allows command injection via the username and batch user creation parameters, enabling the execution of shell commands with administrative privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2021-47816

Affected Products

Thecus N4800Eco Nas Server

References · 8

• 🔥 https://exploit-db.com/exploits/49926 · Exploit
• 🔥 https://docs.unsafe-inline.com/0day/thecus-n4800eco-nas-server-control-panel-comand-injection · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47816 · Security Note
• http://thecus.com · Note
• http://thecus.com/product.php?PROD_ID=83 · Note
• https://twitter.com/CVEnew/status/2012303225479905685 · Twitter Post
• https://twitter.com/CveFindCom/status/2012248433596194834 · Twitter Post
• https://vulncheck.com/advisories/thecus-neco-nas-server-control-panel-command-injection · Note