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CVE-2025-14964— TOTOLINK T10 cstecgi.cgi sprintf stack-based overflow

Quick assessment

Affected
TOTOLINK T10
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 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 4.1.8cu.5083_B20200521版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi中sprintf函数对参数loginAuthUrl处理不当，可能导致栈缓冲区溢出。

CVSS 9.8 · Critical EPSS 0.99% · P59

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-14964

Vulnerability Information
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Vulnerability Title
TOTOLINK T10 cstecgi.cgi sprintf stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5083_B20200521. This affects the function sprintf of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument loginAuthUrl leads to stack-based buffer overflow. The attack may be performed from remote.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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 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 4.1.8cu.5083_B20200521版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi中sprintf函数对参数loginAuthUrl处理不当，可能导致栈缓冲区溢出。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
TOTOLINK T10 4.1.8cu.5083_B20200521 cpe:2.3:o:totolink:t10_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-14964

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10213 chars
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III. Intelligence Information for CVE-2025-14964

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Vendor Advisories for CVE-2025-14964 (3)

Other References for CVE-2025-14964 (1)

IV. Related Vulnerabilities

Same product: T10
Same vendor: TOTOLINK
Same weakness: CWE-121

V. Comments for CVE-2025-14964

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