RCE in Trendnet Tew-821dap
CVE-2026-7609
A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the component Firmware Udpate. This manipulation causes os command injection. Remote exploitat…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.004 (63.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Trendnet Tew-821dap — versions 1.0r, 1.12B01
- Trendnet Tew-821dap_firmware — versions 1.12b01
Weakness classification (CWE)
References
- VDB-360566 | TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-360566 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #806216 | Trendnet TEW-821DAP v1.12B01 CWE-78 Improper Neutralization of Special Elements used in an O (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit, patch)
Frequently asked questions
- What is CVE-2026-7609?
- CVE-2026-7609 is a medium-severity vulnerability in Trendnet Tew-821dap, classified under Command Injection. CVSS score: 6.3/10. Published 2026-05-02.
- How severe is CVE-2026-7609?
- Medium severity. CVSS v3 base score is 6.3 out of 10.