CVE-2026-7606 Details
Description
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.
An authentication vulnerability has been identified in the TRENDnet TEW-821DAP access point, specifically in firmware version 1.12B01. The issue arises in the Firmware Update Handler component, within the functions find_hwid and new_gui_update_firmware. This vulnerability allows for insufficient verification of data authenticity during the firmware update process. The flaw can be exploited remotely, although the complexity of the attack is considered high. The vulnerability stems from hard-coded verification information used for authenticating firmware updates. Attackers could potentially bypass this authentication and upload malicious firmware, leading to arbitrary code execution or a denial-of-service condition by causing the device to become unresponsive.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_Auth.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/806213 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/360563 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/360563/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-345 | Insufficient Verification of Data Authenticity | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| trendnet tew-821dap firmware | 1.12b01 |
CPE
Remediation
| |
| trendnet tew-821dap | 1.0r |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 6, 2026 | Initial Analysis | [email protected] |
| May 2, 2026 | New CVE Received | [email protected] |