Vulnerability · Published Jul 12, 2026 · Assigned by VulDB

CVE-2026-15484TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in TEW-821DAP from TRENDnet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.8%top 43.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
TRENDnet	TEW-821DAP	1.12B01

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R

References

VDB-377791 | TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow vdb-entry, technical-description
VDB-377791 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-15484 | CVE Analysis and Report third-party-advisory
Submit #842381 | Trendnet TEW-821DAP v1.12B01 CWE-120 Buffer Copy without Checking Size of Input ('Classic Buf third-party-advisory
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_BO3.md patch