CVE-2025-4268— TOTOLINK A720R cstecgi.cgi missing authentication
Quick assessment
Affected
TOTOLINK A720R
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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.374版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi中参数topicurl处理不当，可能导致身份验证缺失。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-4268
Vulnerability Information
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Vulnerability Title
TOTOLINK A720R cstecgi.cgi missing authentication
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This vulnerability affects unknown code of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument topicurl with the input RebootSystem leads to missing authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
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.374版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi中参数topicurl处理不当，可能导致身份验证缺失。
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-2025-4268
| # | POC Description | Source Link | Shenlong Link |
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AI-Generated POC
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Same Patch Batch · TOTOLINK · 2025-05-05 · 4 CVEs total
| CVE-2025-4269 | 6.5 MEDIUM | TOTOLINK A720R Log cstecgi.cgi access control |
| CVE-2025-4270 | 5.3 MEDIUM | TOTOLINK A720R Config cstecgi.cgi information disclosure |
| CVE-2025-4271 | 5.3 MEDIUM | TOTOLINK A720R cstecgi.cgi information disclosure |
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V. Comments for CVE-2025-4268
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