Insufficient Data Authenticity in TRENDnet Product Firmware Update Handler
CVE-2026-7606

6.3MEDIUM

Key Information:

Vendor

Trendnet

Status
Tew-821dap
Vendor
CVE Published:
2 May 2026

What is CVE-2026-7606?

A vulnerability has been discovered in the TRENDnet TEW-821DAP firmware update process, specifically within the find_hwid/new_gui_update_firmware function. This issue stems from inadequate verification of data authenticity during firmware updates, which can be exploited remotely. Although the exploitation is complex and challenging, it poses a risk to products no longer supported by the vendor, such as those impacted by this firmware version from 8 years ago.

Affected Version(s)

TEW-821DAP 1.12B01

References

https://vuldb.com/vuln/360563
vdb-entrytechnical-description
https://vuldb.com/vuln/360563/cti
signaturepermissions-required
https://vuldb.com/submit/806213
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

IOT_Res (VulDB User)
VulDB CNA Team
.