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CVE-2026-7674— Shenzhen Libituo Technology LBT-T300-HW1 Web Management start_single_service buffer overflow

CVSS 8.8 · High EPSS 0.05% · P15
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I. Basic Information for CVE-2026-7674

Vulnerability Information
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Vulnerability Title
Shenzhen Libituo Technology LBT-T300-HW1 Web Management start_single_service buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in Shenzhen Libituo Technology LBT-T300-HW1 up to 1.2.8. This issue affects the function start_single_service of the component Web Management Interface. Executing a manipulation of the argument vpn_pptp_server/vpn_l2tp_server can lead to buffer overflow. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
LINBLE LBT-T300-HW1 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LINBLE LBT-T300-HW1是中国力必拓（LINBLE）公司的一款工业物联网通信设备。 LINBLE LBT-T300-HW1 1.2.8及之前版本存在缓冲区错误漏洞，该漏洞源于组件Web Management Interface的函数start_single_service对参数vpn_pptp_server/vpn_l2tp_server的操作，可能导致缓冲区溢出。
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
Shenzhen Libituo TechnologyLBT-T300-HW1 1.2.0 -

II. Public POCs for CVE-2026-7674

#POC DescriptionSource LinkShenlong Link
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claude_code · 5573 chars
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III. Intelligence Information for CVE-2026-7674

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IV. Related Vulnerabilities

Same product: LBT-T300-HW1
Same vendor: Shenzhen Libituo Technology
Same weakness: CWE-120

V. Comments for CVE-2026-7674

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