CVE-2026-7607: TRENDnet Tew-821dap Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be initiated remotely. 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.

Affected products

• TRENDnet Tew-821dap Firmware: version 1.12b01 only

Published 2026-05-02. Last modified 2026-06-17.