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8.7
CVE-2026-15484: TRENDnet TEW-821DAP: Remote Attack via Buffer Overflow
CVE-2026-15484
CVE-2026-15484
Summary
A remote attacker can exploit a buffer overflow vulnerability in the TRENDnet TEW-821DAP router, which is no longer supported by the manufacturer. This means the company will not provide any security updates or patches to fix the issue. Affected users should consider replacing the router to ensure their network security.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| trendnet | tew-821dap | 1.12B01 |
Original title
TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow
Original description
A vulnerability was detected in TRENDnet TEW-821DAP 1.12B01. The affected element is the function sub_41EC14 of the file /goform/tools_nslookup of the component ssi. The manipulation results in buffer overflow. It is possible to launch the attack remotely. The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. " This vulnerability only affects products that are no longer supported by the maintainer.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
8.7
Vulnerability type
CWE-119
Buffer Overflow
CWE-120
Classic Buffer Overflow
Published: 12 Jul 2026 · Updated: 20 Jul 2026 · First seen: 12 Jul 2026