CVE-2021-47816

5.3 mediumEPSS 1.8%

Medium (5.3). EPSS 1.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.3 medium

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

CVSS 3.1

8.8 high

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

EPSS: 1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2026-01-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

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

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