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I. Basic Information for CVE-2025-7837
Vulnerability Information

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Vulnerability Title
TOTOLINK T6 MQTT Service recvSlaveStaInfo buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this issue is the function recvSlaveStaInfo of the component MQTT Service. The manipulation of the argument dest leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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
TOTOLINK T6 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK T6是中国吉翁电子(TOTOLINK)公司的一款无线双频路由器。 TOTOLINK T6 4.1.5cu.748_B20211015版本存在安全漏洞,该漏洞源于MQTT服务中recvSlaveStaInfo函数对参数dest处理不当导致缓冲区溢出。
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
TOTOLINKT6 4.1.5cu.748_B20211015 -
II. Public POCs for CVE-2025-7837
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III. Intelligence Information for CVE-2025-7837
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