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CVE-2025-6138— TOTOLINK T10 HTTP POST Request cstecgi.cgi setWizardCfg buffer overflow

Quick assessment

Affected
TOTOLINK T10
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 T10是中国吉翁电子（TOTOLINK）公司的一款无线网路系统路由器。 TOTOLINK T10 存在安全漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中函数setWizardCfg的参数ssid5g的错误操作导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.82% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-6138

Vulnerability Information
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Vulnerability Title
TOTOLINK T10 HTTP POST Request cstecgi.cgi setWizardCfg buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical was found in TOTOLINK T10 4.1.8cu.5207. Affected by this vulnerability is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ssid5g leads to buffer overflow. The attack can be launched 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:L/UI:N/S:U/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
Vulnerability Title
TOTOLINK T10 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK T10是中国吉翁电子（TOTOLINK）公司的一款无线网路系统路由器。 TOTOLINK T10 存在安全漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中函数setWizardCfg的参数ssid5g的错误操作导致缓冲区溢出。
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

Vendor Product Affected Versions CPE Subscribe
TOTOLINK T10 4.1.8cu.5207 -

II. Public POCs for CVE-2025-6138

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III. Intelligence Information for CVE-2025-6138

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Same Patch Batch · TOTOLINK · 2025-06-16 · 10 CVEs total

CVE-2025-6146 8.8 HIGH TOTOLINK X15 HTTP POST Request formSysLog buffer overflow
CVE-2025-6145 8.8 HIGH TOTOLINK EX1200T HTTP POST Request formSysLog buffer overflow
CVE-2025-6144 8.8 HIGH TOTOLINK EX1200T HTTP POST Request formSysCmd buffer overflow
CVE-2025-6143 8.8 HIGH TOTOLINK EX1200T HTTP POST Request formNtp buffer overflow
CVE-2025-6137 8.8 HIGH TOTOLINK T10 HTTP POST Request cstecgi.cgi setWiFiScheduleCfg buffer overflow
CVE-2025-6130 8.8 HIGH TOTOLINK EX1200T HTTP POST Request formStats buffer overflow
CVE-2025-6129 8.8 HIGH TOTOLINK EX1200T HTTP POST Request formSaveConfig buffer overflow
CVE-2025-6128 8.8 HIGH TOTOLINK EX1200T HTTP POST Request formWirelessTbl buffer overflow
CVE-2025-6139 3.9 LOW TOTOLINK T10 shadow.sample hard-coded password

IV. Related Vulnerabilities

Same product: T10
Same vendor: TOTOLINK
Same weakness: CWE-120

V. Comments for CVE-2025-6138

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