Vulnerability in Trendnet Tew-821dap
CVE-2026-7606
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Trendnet Tew-821dap — versions 1.0r, 1.12B01
- Trendnet Tew-821dap Firmware — versions 1.12b01
Weakness classification (CWE)
References
- vuldb.com/vuln/360563 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/360563/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/806213 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_Auth.md (Exploit, Third Party Advisory, patch)
Frequently asked questions
- What is CVE-2026-7606?
- CVE-2026-7606 is a low-severity vulnerability in Trendnet Tew-821dap, classified under Insufficient Verification of Data Authenticity. CVSS score: 3.7/10. Published 2026-05-02.
- How severe is CVE-2026-7606?
- Low severity. CVSS v3 base score is 3.7 out of 10.