CVE-2025-9303— TOTOLINK A720R cstecgi.cgi setParentalRules buffer overflow
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I. Basic Information for CVE-2025-9303
Vulnerability Information
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Vulnerability Title
TOTOLINK A720R cstecgi.cgi setParentalRules buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in TOTOLINK A720R 4.1.5cu.630_B20250509. This issue affects the function setParentalRules of the file /cgi-bin/cstecgi.cgi. Performing manipulation of the argument desc results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be exploited.
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 A720R 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A720R是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK A720R 4.1.5cu.630_B20250509版本存在安全漏洞，该漏洞源于对参数desc的错误操作导致缓冲区溢出。
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
II. Public POCs for CVE-2025-9303
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IV. Related Vulnerabilities
Same product: A720R
- CVE-2025-4271
TOTOLINK A720R cstecgi.cgi information disclosure - CVE-2025-4270
TOTOLINK A720R Config cstecgi.cgi information disclosure - CVE-2025-4269
TOTOLINK A720R Log cstecgi.cgi access control - CVE-2025-4268
TOTOLINK A720R cstecgi.cgi missing authentication - CVE-2024-8869
TOTOLINK A720R exportOvpn os command injection
Same vendor: TOTOLINK
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Totolink N300RH POST Request cstecgi.cgi setMacFilterRules b - CVE-2026-7749
Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer - CVE-2026-7748
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer
Same weakness: CWE-120
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V. Comments for CVE-2025-9303
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