CVE-2025-1340— TOTOLINK X18 cstecgi.cgi setPasswordCfg stack-based overflow
Quick assessment
Affected
TOTOLINK X18
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
TOTOLINK X18是中国吉翁电子（TOTOLINK）公司的一款千兆路由器。 TOTOLINK X18 9.1.0cu.2024_B20220329版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi的参数String会导致基于堆栈的缓冲区溢出。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-1340
Vulnerability Information
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Vulnerability Title
TOTOLINK X18 cstecgi.cgi setPasswordCfg stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical has been found in TOTOLINK X18 9.1.0cu.2024_B20220329. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi. The manipulation as part of String leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK X18 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK X18是中国吉翁电子（TOTOLINK）公司的一款千兆路由器。 TOTOLINK X18 9.1.0cu.2024_B20220329版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi的参数String会导致基于堆栈的缓冲区溢出。
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-2025-1340
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Qwen3.6-35B-A3B
· 11417 chars
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III. Intelligence Information for CVE-2025-1340
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Vendor Advisories for CVE-2025-1340 (2)
-
Submit #495368: totolink x18 V9.1.0cu.2024_B20220329 stack overflow third-party-advisory
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CVE-2025-1340 TOTOLINK X18 cstecgi.cgi setPasswordCfg stack-based overflow vdb-entry technical-description
Proof of Concept for CVE-2025-1340 (1)
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V. Comments for CVE-2025-1340
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