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CVE-2025-6143— TOTOLINK EX1200T HTTP POST Request formNtp buffer overflow

Quick assessment

Affected
TOTOLINK EX1200T
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 EX1200T是中国吉翁电子（TOTOLINK）公司的一款 Wi-Fi 范围扩展器。 TOTOLINK EX1200T 存在安全漏洞，该漏洞源于对文件/boafrm/formNtp中参数submit-url的错误操作导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.81% · P54
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I. Basic Information for CVE-2025-6143

Vulnerability Information
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Vulnerability Title
TOTOLINK EX1200T HTTP POST Request formNtp buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. Affected is an unknown function of the file /boafrm/formNtp of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack 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 EX1200T 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK EX1200T是中国吉翁电子（TOTOLINK）公司的一款 Wi-Fi 范围扩展器。 TOTOLINK EX1200T 存在安全漏洞，该漏洞源于对文件/boafrm/formNtp中参数submit-url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 EX1200T 4.1.2cu.5232_B20210713 -

II. Public POCs for CVE-2025-6143

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8248 chars
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In-depth vulnerability mechanism
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2025-6143

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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-2025-6138 8.8 HIGH TOTOLINK T10 HTTP POST Request cstecgi.cgi setWizardCfg 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: EX1200T
Same vendor: TOTOLINK
Same weakness: CWE-120

V. Comments for CVE-2025-6143

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