CVE-2026-15483 TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the nslookup tool of the EOL TRENDnet TEW-821DAP, potentially causing code execution or denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-15483?

CVE-2026-15483 is a high-severity memory corruption vulnerability in TRENDnet TEW-821DAP, published on 12 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function sub_41EC14 of the file /goform/tools_nslookup of the component ssi. The manipulation of the argument nslookup_target leads to buffer overflow. It is possible to initiate 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.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-15483?

How do I fix CVE-2026-15483?

No fix has been published for CVE-2026-15483 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-15483 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15483 exists.

Sources

Also known as GHSA-j9x6-5fxr-xh6q.

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