Vulnerability · Published Jul 12, 2026 · Assigned by VulDB
CVE-2026-15487TRENDnet TEW-821DAP Firmware Update system_ntp sub_41FBD0 os command injection
Medium 6.3
In plain English
A medium-severity OS command injection in TEW-821DAP from TRENDnet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).
Official description
A vulnerability was found in TRENDnet TEW-821DAP 1.11B03. This impacts the function sub_41FBD0 of the file /goform/system_ntp of the component Firmware Update Handler. Performing a manipulation of the argument Hostname results in os command injection. The attack may be initiated 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TRENDnet | TEW-821DAP | 1.11B03 |
Weakness: CWE-78, CWE-77 · Vector: 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
References
- VDB-377794 | TRENDnet TEW-821DAP Firmware Update system_ntp sub_41FBD0 os command injection vdb-entry, technical-description
- VDB-377794 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-15487 | CVE Analysis and Report third-party-advisory
- Submit #842385 | Trendnet TEW-821DAP v1.11B03 CWE-78 Improper Neutralization of Special Elements used in an OS third-party-advisory
- https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI5.md patch