CVE-2026-85031— TOTOLINK CP450 cstecgi.cgi buffer overflow
Quick assessment
Affected
TOTOLINK CP450
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.
在 TOTOLINK CP450 4.1.0 版本中发现了一个安全漏洞。受影响的组件是位于 文件中的一个未知函数。当对参数 进行特定操作时，会引发缓冲区溢出（buffer overflow）。该漏洞可被远程利用，意味着攻击者无需本地访问权限即可发动攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-85031
Vulnerability Information
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Vulnerability Title
TOTOLINK CP450 cstecgi.cgi buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in TOTOLINK CP450 4.1.0. The impacted element is an unknown function of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument topicurl results in buffer overflow. Remote exploitation of the attack is possible.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-85031
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-85031 (1)
Other References for CVE-2026-85031 (2)
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🔗 CVE-2026-85031 in CP450 third-party-advisory
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🔗 Submit #853096: TOTOLINK CP450 V4.1.0 Buffer Overflow third-party-advisory
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V. Comments for CVE-2026-85031
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