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I. Basic Information for CVE-2025-12240
Vulnerability Information

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Vulnerability Title
TOTOLINK A3300R cstecgi.cgi setDmzCfg buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security vulnerability has been detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This affects the function setDmzCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly 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 A3300R 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A3300R是中国吉翁电子(TOTOLINK)公司的一款无线路由器。 TOTOLINK A3300R 17.0.0cu.557_B20221024版本存在安全漏洞,该漏洞源于对文件/cgi-bin/cstecgi.cgi中函数setDmzCfg的参数ip的错误操作,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
TOTOLINKA3300R 17.0.0cu.557_B20221024 -
II. Public POCs for CVE-2025-12240
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III. Intelligence Information for CVE-2025-12240
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IV. Related Vulnerabilities
V. Comments for CVE-2025-12240

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