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CVE-2026-7606— TRENDnet TEW-821DAP Firmware Update new_gui_update_firmware data authenticity

Quick assessment

Affected
TRENDnet TEW-821DAP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TRENDnet TEW-821DAP是美国趋势网络（TRENDnet）公司的一款无线接入点。 TRENDnet TEW-821DAP 1.12B01版本存在数据伪造问题漏洞，该漏洞源于Firmware Update Handler组件中find_hwid/new_gui_update_firmware函数对参数dest操作不当，可能导致数据真实性验证不足。

CVSS 3.7 · Low EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
TRENDnet TEW-821DAP 1.12B01 affected
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I. Basic Information for CVE-2026-7606

Vulnerability Information
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Vulnerability Title
TRENDnet TEW-821DAP Firmware Update new_gui_update_firmware data authenticity
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
TRENDnet TEW-821DAP 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TRENDnet TEW-821DAP是美国趋势网络（TRENDnet）公司的一款无线接入点。 TRENDnet TEW-821DAP 1.12B01版本存在数据伪造问题漏洞，该漏洞源于Firmware Update Handler组件中find_hwid/new_gui_update_firmware函数对参数dest操作不当，可能导致数据真实性验证不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TRENDnet TEW-821DAP 1.12B01 cpe:2.3:o:trendnet:tew-821dap_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-7606

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III. Intelligence Information for CVE-2026-7606

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News Coverage for CVE-2026-7606 (1)

Same Patch Batch · TRENDnet · 2026-05-02 · 6 CVEs total

CVE-2026-7607 8.8 HIGH TRENDnet TEW-821DAP Firmware Udpate auto_update_firmware buffer overflow
CVE-2026-7609 6.3 MEDIUM TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection
CVE-2026-7608 5.5 MEDIUM TRENDnet TEW-821DAP tools_diagnostic os command injection
CVE-2026-7611 3.7 LOW TRENDnet TEW-821DAP Firmware Update cameo_dev.sh platform_do_upgrade_cameo_dev data authen
CVE-2026-7610 3.7 LOW TRENDnet TEW-821DAP Firmware Update ssi cleartext transmission

IV. Related Vulnerabilities

Same product: TEW-821DAP
Same vendor: TRENDnet
Same weakness: CWE-345

V. Comments for CVE-2026-7606

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