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

CVSS 8.8 · High EPSS 0.47% · P39

Affected Version Matrix 1

VendorProductVersion RangeStatus
TRENDnetTEW-821DAP1.12B01affected
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I. Basic Information for CVE-2026-15483

Vulnerability Information
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Vulnerability Title
TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
TRENDnet TEW-821DAP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TRENDnet tew-821dap是美国TRENDnet公司的一款无线接入点。 TRENDnet TEW-821DAP 1.12B01版本存在缓冲区错误漏洞，该漏洞源于文件/goform/tools_nslookup中ssi组件的sub_41EC14函数对参数nslookup_target操作不当，导致缓冲区溢出，攻击者可能通过远程攻击利用此漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
TRENDnetTEW-821DAP 1.12B01 cpe:2.3:o:trendnet:tew-821dap_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-15483

#POC DescriptionSource LinkShenlong Link
AI-Generated POCVerified env Premium
Reproduced successfully in a real sandbox· Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker:VULNERABLE: CVE-2026-15483 buffer overflow confirmed - 512-byte nslookup_target into 256-byte stack buffer with proof token PROOF_8ad80bdb81f67f45
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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III. Intelligence Information for CVE-2026-15483

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Vendor Advisories for CVE-2026-15483 (1)

Same Patch Batch · TRENDnet · 2026-07-12 · 7 CVEs total

CVE-2026-154848.8 HIGHTRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow
CVE-2026-154818.8 HIGHTrendnet TEW-635BRM IPoA WAN Connection Setup rc ipoa_test command injection
CVE-2026-154808.8 HIGHTrendnet TEW-635BRM Web Service rc start_httpd stack-based overflow
CVE-2026-154876.3 MEDIUMTRENDnet TEW-821DAP Firmware Update system_ntp sub_41FBD0 os command injection
CVE-2026-154866.3 MEDIUMTRENDnet TEW-821DAP Firmware Update tools_ddns sub_42026C os command injection
CVE-2026-154856.3 MEDIUMTRENDnet TEW-821DAP DNS Lookup tools_nslookup sub_43F2C4 os command injection

IV. Related Vulnerabilities

Same product: TEW-821DAP
Same vendor: TRENDnet
Same weakness: CWE-120

V. Comments for CVE-2026-15483

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