CVE-2026-76582

TRENDnet TEW-821DAP ssi ping.cgi system command injection

State: Published
Severity: 5.3 Medium
Published: Aug 19, 2026
Updated: Aug 21, 2026
Reserved: Aug 19, 2026

Description

A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected is the function popen/system of the file /cgi-bin/ping.cgi of the component ssi. Executing a manipulation of the argument ipaddr can lead to command injection. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.

Scores

CVSS	Score	Vector	Source
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:L/SI:L/SA:L/E:P	VulDB
3.1	7.4 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	7.4 High	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-77 Command Injection
CWE-74 Injection

Affected Products

Product	Versions
TEW-821DAPTRENDnet	2.2.01b05Affected

References

VDB-393041 | TRENDnet TEW-821DAP ssi ping.cgi system command injectionvdb-entrytechnical-description
VDB-393041 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-76582 | CVE Analysis and Reportthird-party-advisory
Submit #877791 | TRENDnet TEW-821DAP TEW-821DAP Command Injectionthird-party-advisory
https://github.com/meishigana/CVE/tree/main/team15_20260702/06_821dap-ssi-remote-cmdiexploit

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