What is CVE-2026-76582?

CVE-2026-76582 is a high-severity vulnerability in Trendnet Tew-821dap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-19.

How severe is CVE-2026-76582?

High severity. CVSS v3 base score is 7.4 out of 10.

RCE in Trendnet Tew-821dap

CVE-2026-76582

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.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

Affected products

Trendnet Tew-821dap — versions 2.2.01b05

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-76582?: CVE-2026-76582 is a high-severity vulnerability in Trendnet Tew-821dap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-19.
How severe is CVE-2026-76582?: High severity. CVSS v3 base score is 7.4 out of 10.