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CVE-2026-8234— EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based overflow

Quick assessment

Affected
EFM ipTIME A8004T
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EFM ipTIME A8004T是韩国EFM公司的一款无线路由器。 EFM ipTIME A8004T 14.18.2版本存在缓冲区错误漏洞，该漏洞源于文件/goform/WifiBasicSet中函数formWifiBasicSet对参数security_5g的操作存在栈缓冲区溢出，可能导致远程攻击。

CVSS 8.8 · High EPSS 0.80% · P56

Affected Version Matrix 1

VendorProduct Version RangeStatus
EFM ipTIME A8004T 14.18.2 affected
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I. Basic Information for CVE-2026-8234

Vulnerability Information
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Vulnerability Title
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in EFM ipTIME A8004T 14.18.2. This vulnerability affects the function formWifiBasicSet of the file /goform/WifiBasicSet. The manipulation of the argument security_5g leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
EFM ipTIME A8004T 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EFM ipTIME A8004T是韩国EFM公司的一款无线路由器。 EFM ipTIME A8004T 14.18.2版本存在缓冲区错误漏洞，该漏洞源于文件/goform/WifiBasicSet中函数formWifiBasicSet对参数security_5g的操作存在栈缓冲区溢出，可能导致远程攻击。
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

Vendor Product Affected Versions CPE Subscribe
EFM ipTIME A8004T 14.18.2 -

II. Public POCs for CVE-2026-8234

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7505 chars
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III. Intelligence Information for CVE-2026-8234

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News Coverage for CVE-2026-8234 (1)

IV. Related Vulnerabilities

Same product: ipTIME A8004T
Same vendor: EFM
Same weakness: CWE-121

V. Comments for CVE-2026-8234

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