CVE-2026-15486CWE-77CWE-78

TRENDnet TEW-821DAP Firmware Update tools_ddns sub_42026C os command injection

Medium · published July 12, 2026

CVSS v4.0
5.3
EPSS
2%
Percentile
77.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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/E:X
EPSS
0.01768 · 77.9th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-07-12T08:15Z
EPSS history
Timeline
  • 12 JUL 08:15Z
    TRENDnet TEW-821DAP Firmware Update tools_ddns sub_42026C os command injection
    cvelistv5