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CVE-2024-7463— TOTOLINK CP900 cstecgi.cgi UploadCustomModule buffer overflow

Quick assessment

Affected
TOTOLINK CP900
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 CP900是中国吉翁电子（TOTOLINK）公司的一个无线路由器。 TOTOLINK CP900 6.3c.566存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi的UploadCustomModule函数。对参数File的操纵会导致缓冲区溢出。

CVSS 8.8 · High EPSS 10.98% · P96

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-7463

Vulnerability Information
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Vulnerability Title
TOTOLINK CP900 cstecgi.cgi UploadCustomModule buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical was found in TOTOLINK CP900 6.3c.566. This vulnerability affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-273556. NOTE: 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
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 CP900 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK CP900是中国吉翁电子（TOTOLINK）公司的一个无线路由器。 TOTOLINK CP900 6.3c.566存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi的UploadCustomModule函数。对参数File的操纵会导致缓冲区溢出。
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 CP900 6.3c.566 -

II. Public POCs for CVE-2024-7463

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8491 chars
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III. Intelligence Information for CVE-2024-7463

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Vendor Advisories for CVE-2024-7463 (3)

Other References for CVE-2024-7463 (1)

Same Patch Batch · TOTOLINK · 2024-08-05 · 4 CVEs total

CVE-2024-7465 8.8 HIGH TOTOLINK CP450 cstecgi.cgi loginauth buffer overflow
CVE-2024-7462 8.8 HIGH TOTOLINK N350RT cstecgi.cgi setWizardCfg buffer overflow
CVE-2024-7464 6.3 MEDIUM TOTOLINK CP900 Telnet Service setTelnetCfg command injection

IV. Related Vulnerabilities

Same product: CP900
Same vendor: TOTOLINK
Same weakness: CWE-120

V. Comments for CVE-2024-7463

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