What is CVE-2026-15486?

CVE-2026-15486 is a medium-severity vulnerability in Trendnet Tew-821dap, classified under Command Injection. CVSS score: 6.3/10. Published 2026-07-12.

How severe is CVE-2026-15486?

Medium severity. CVSS v3 base score is 6.3 out of 10.

RCE in Trendnet Tew-821dap

CVE-2026-15486

A vulnerability has been found in TRENDnet TEW-821DAP 1.11B03. This affects the function sub_42026C of the file /goform/tools_ddns of the component Firmware Update Handler. Such manipulation of the argument hostname/username/password leads to os command injection. The attack can be launched remotely. The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. " This vulnerability only affects products that are no longer supported by the maintainer.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.018 (76.4th 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 1.11B03

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 (patch)

Frequently asked questions

What is CVE-2026-15486?: CVE-2026-15486 is a medium-severity vulnerability in Trendnet Tew-821dap, classified under Command Injection. CVSS score: 6.3/10. Published 2026-07-12.
How severe is CVE-2026-15486?: Medium severity. CVSS v3 base score is 6.3 out of 10.