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CVE-2024-7334— TOTOLINK EX1200L cstecgi.cgi UploadCustomModule buffer overflow

Quick assessment

Affected
TOTOLINK EX1200L
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 EX1200L是中国吉翁电子（TOTOLINK）公司的一款无线中继器。 TOTOLINK EX1200L 9.3.5u.6146_B20201023版本存在安全漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi的UploadCustomModule函数操作会导致缓冲区溢出。

CVSS 8.8 · High EPSS 1.19% · P65
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I. Basic Information for CVE-2024-7334

Vulnerability Information
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Vulnerability Title
TOTOLINK EX1200L cstecgi.cgi UploadCustomModule buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. It has been rated as critical. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-273257 was assigned to this vulnerability. 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 EX1200L 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK EX1200L是中国吉翁电子（TOTOLINK）公司的一款无线中继器。 TOTOLINK EX1200L 9.3.5u.6146_B20201023版本存在安全漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi的UploadCustomModule函数操作会导致缓冲区溢出。
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 EX1200L 9.3.5u.6146_B20201023 -

II. Public POCs for CVE-2024-7334

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7876 chars
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III. Intelligence Information for CVE-2024-7334

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Vendor Advisories for CVE-2024-7334 (3)

Other References for CVE-2024-7334 (1)

Same Patch Batch · TOTOLINK · 2024-08-01 · 8 CVEs total

CVE-2024-7332 9.8 CRITICAL TOTOLINK CP450 Telnet Service product.ini hard-coded password
CVE-2024-7331 8.8 HIGH TOTOLINK A3300R cstecgi.cgi UploadCustomModule buffer overflow
CVE-2024-7333 8.8 HIGH TOTOLINK N350RT cstecgi.cgi setParentalRules buffer overflow
CVE-2024-7335 8.8 HIGH TOTOLINK EX200 getSaveConfig buffer overflow
CVE-2024-7336 8.8 HIGH TOTOLINK EX200 cstecgi.cgi loginauth buffer overflow
CVE-2024-7337 8.8 HIGH TOTOLINK EX1200L cstecgi.cgi loginauth buffer overflow
CVE-2024-7338 8.8 HIGH TOTOLINK EX1200L cstecgi.cgi setParentalRules buffer overflow

IV. Related Vulnerabilities

Same product: EX1200L
Same vendor: TOTOLINK
Same weakness: CWE-120

V. Comments for CVE-2024-7334

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