CVE-2026-75013— TOTOLINK EX1200L cstecgi.cgi setWizardCfg null pointer dereference
Quick assessment
Affected
TOTOLINK EX1200L
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 EX1200L是中国TOTOLINK公司的一款双频无线路由器。 TOTOLINK EX1200L 9.3.5u.6146_B20201023版本存在安全漏洞，该漏洞源于/cgi-bin/cstecgi.cgi文件中setWizardCfg函数的操作导致空指针取消引用，攻击者可远程利用该漏洞。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-75013
Vulnerability Information
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Vulnerability Title
TOTOLINK EX1200L cstecgi.cgi setWizardCfg null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi. The manipulation results in null pointer dereference. The attack can be launched remotely. The exploit is now public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK EX1200L 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK EX1200L是中国TOTOLINK公司的一款双频无线路由器。 TOTOLINK EX1200L 9.3.5u.6146_B20201023版本存在安全漏洞，该漏洞源于/cgi-bin/cstecgi.cgi文件中setWizardCfg函数的操作导致空指针取消引用，攻击者可远程利用该漏洞。
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-2026-75013
| # | POC Description | Source Link | Shenlong Link |
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Proof of Concept for CVE-2026-75013 (1)
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V. Comments for CVE-2026-75013
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