CVE-2025-28020
Quick assessment
Affected
n/a n/a
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 A800R是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK A800R V4.1.2cu.5137_B20200730版本存在安全漏洞，该漏洞源于downloadFile.cgi中v25参数的缓冲区溢出。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-28020
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in downloadFile.cgi through the v25 parameter.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK A800R 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A800R是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK A800R V4.1.2cu.5137_B20200730版本存在安全漏洞，该漏洞源于downloadFile.cgi中v25参数的缓冲区溢出。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2025-28020
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2025-28020 (2)
Same Patch Batch · n/a · 2025-04-23 · 13 CVEs total
| CVE-2025-28017 | TOTOLINK A800R 安全漏洞 | |
| CVE-2025-28025 | TOTOLINK A830R 安全漏洞 | |
| CVE-2025-28018 | TOTOLINK A800R 安全漏洞 | |
| CVE-2025-28019 | TOTOLINK A800R 安全漏洞 | |
| CVE-2025-28169 | BYD QIN PLUS DM-i with Dilink OS 安全漏洞 | |
| CVE-2025-28022 | TOTOLINK A810R 安全漏洞 | |
| CVE-2025-28028 | TOTOLINK A830R 安全漏洞 | |
| CVE-2025-28021 | TOTOLINK A810R 安全漏洞 | |
| CVE-2025-29526 | Q4 Investor Relations Platform 安全漏洞 | |
| CVE-2025-45429 | Tenda AC9 安全漏洞 | |
| CVE-2025-45428 | Tenda AC9 安全漏洞 | |
| CVE-2025-45427 | Tenda AC9 安全漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a