CVE-2026-75012— TOTOLINK EX1200L Password Configuration cstecgi.cgi setPasswordCfg 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Password Configuration Handler组件中setPasswordCfg函数对/cgi-bin/cstecgi.cgi文件的操作导致空指针取消引用，可能允许远程攻击者利用该漏洞发起攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-75012
Vulnerability Information
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Vulnerability Title
TOTOLINK EX1200L Password Configuration cstecgi.cgi setPasswordCfg null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in TOTOLINK EX1200L 9.3.5u.6146_B20201023. Affected by this issue is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Password Configuration Handler. The manipulation leads to null pointer dereference. The attack can be initiated remotely. The exploit has been disclosed publicly 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Password Configuration Handler组件中setPasswordCfg函数对/cgi-bin/cstecgi.cgi文件的操作导致空指针取消引用，可能允许远程攻击者利用该漏洞发起攻击。
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-2026-75012
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Proof of Concept for CVE-2026-75012 (1)
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V. Comments for CVE-2026-75012
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