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Tew 821dap FirmwareOperating system · Trendnet

CVE-2026-7610

HIGH · 8.1 CVSS v3.1 Published 2026-05-02
No fix yet
No fix has been published. The vendor has not shipped a fixed release or patch. You remain exposed.
See remediation →
90/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability has been found in TRENDnet TEW-821DAP 1.12B01. This affects an unknown function of the file /www/cgi/ssi of the component Firmware Update. Such manipulation leads to cleartext transmission of sensitive information. The attack can be executed remotely. This attack is characterized by high complexity. The exploitability is reported as difficult. The exploit has been disclosed to the public and may be used. 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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-310

A legacy NVD category for weaknesses in how cryptography is chosen or used — weak algorithms, poor key handling, missing integrity protection. It is a broad bucket rather than a specific bug. The remedy depends on the detail, but it comes down to strong modern algorithms, disciplined key management, and validated implementations rather than home-grown schemes.

General guidance for the cryptographic issues class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Tew 821dap FirmwareOperating system
Affected:= 1.12b01

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Recommended fix High confidence
  1. This vulnerability affects TRENDnet TEW-821DAP firmware version 1.12b01, which the vendor has explicitly stated is End-of-Life (EOL) and unsupported.
  2. The vendor (TRENDnet) has indicated the product was discontinued approximately 8 years ago and no longer receives security updates.
  3. No fixed firmware version, patch, or configuration mitigation is available from the vendor for this vulnerability.
  4. Recommendation: Replace the affected hardware with a currently supported device from TRENDnet or another vendor that provides active security support.
  5. If the device must remain in service despite the risk, isolate it on a restricted network segment to minimize exposure, but note this is only a partial mitigation that does not resolve the underlying cleartext transmission vulnerability.
Caveat The product is End-of-Life with no available firmware updates; replacement is the only remediation path

Generated from the published advisory — verify against the referenced sources before acting.

No vendor fix exists Tew 821dap Firmware has not published a patch for this.

There is no version to upgrade to and no patch to apply. Every affected install stays exposed until the vendor ships a fix — or somebody else builds one.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-7610 in production — separate from our analysis above.

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