What’s Vulnerable › Vulnerabilities

CVE-2026-15486: TRENDnet TEW-821DAP Firmware Update tools_ddns sub_42026C os command injection

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-12 · updated 2026-10-25
• Weakness: CWE-77

Description

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.

Affected products

• TRENDnet TEW-821DAP: 1.11B03

References

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

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