A weakness has been identified in TRENDnet TEW-821DAP 1.12B01. This issue affects the function find_hwid/new_gui_update_firmware of the component Firmware Update Handler. Executing a manipulation of the argument dest can lead to insufficient verification of data authenticity. The attack can be launched remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.3 · trendnetNVD modified 2026-10-26 20:10
Affected (CPE criteria) 1
cpe:2.3:o:trendnet:tew-821dap_firmware:1.12b01:*:*:*:*:*:*:*
References 4
- https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_Auth.md Exploit, Third Party Advisory
- https://vuldb.com/submit/806213 Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/360563 Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/360563/cti Permissions Required, VDB Entry