CVE-2026-15486

MEDIUM 6.3

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

CVSS Score

6.3

EPSS Score

1.1%

EPSS Percentile

60th

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.

CWE	CWE-78 CWE-77
Vendor	trendnet
Product	tew-821dap
Published	Jul 12, 2026
Last Updated	Jul 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TRENDnet / TEW-821DAP

1.11B03

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/377793 vuldb.com: https://vuldb.com/vuln/377793/cti vuldb.com: https://vuldb.com/cve/CVE-2026-15486 vuldb.com: https://vuldb.com/submit/842383 github.com: https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI4.md

Credits

🔍 IOT_Res (VulDB User) VulDB CNA Team