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CVE-2025-5408— WAVLINK WL-WN576K1 HTTP POST Request login.cgi sys_login buffer overflow

Quick assessment

Affected
WAVLINK QUANTUM D2G
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.

WAVLINK是中国睿因（WAVLINK）公司的一款路由器。连接两个或多个网络的硬件设备，在网络间起网关的作用。 WAVLINK多款产品存在安全漏洞，该漏洞源于文件/cgi-bin/login.cgi中参数login_page存在缓冲区溢出。以下产品和版本受到影响:WAVLINK QUANTUM D2G、QUANTUM D3G、WL-WN530G3A、WL-WN530HG3、WL-WN532A3和WL-WN576K1 V1410_240222及之前版本,

CVSS 9.8 · Critical EPSS 0.77% · P53
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I. Basic Information for CVE-2025-5408

Vulnerability Information
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Vulnerability Title
WAVLINK WL-WN576K1 HTTP POST Request login.cgi sys_login buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in WAVLINK QUANTUM D2G, QUANTUM D3G, WL-WN530G3A, WL-WN530HG3, WL-WN532A3 and WL-WN576K1 up to V1410_240222 and classified as critical. Affected by this issue is the function sys_login of the file /cgi-bin/login.cgi of the component HTTP POST Request Handler. The manipulation of the argument login_page leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. 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:N/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
WAVLINK和ch 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WAVLINK是中国睿因（WAVLINK）公司的一款路由器。连接两个或多个网络的硬件设备，在网络间起网关的作用。 WAVLINK多款产品存在安全漏洞，该漏洞源于文件/cgi-bin/login.cgi中参数login_page存在缓冲区溢出。以下产品和版本受到影响:WAVLINK QUANTUM D2G、QUANTUM D3G、WL-WN530G3A、WL-WN530HG3、WL-WN532A3和WL-WN576K1 V1410_240222及之前版本,
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
WAVLINK QUANTUM D2G V1410_240222 -
WAVLINK QUANTUM D3G V1410_240222 -
WAVLINK WL-WN530G3A V1410_240222 -
WAVLINK WL-WN530HG3 V1410_240222 -
WAVLINK WL-WN532A3 V1410_240222 -
WAVLINK WL-WN576K1 V1410_240222 -

II. Public POCs for CVE-2025-5408

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10259 chars
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III. Intelligence Information for CVE-2025-5408

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IV. Related Vulnerabilities

Same vendor: WAVLINK
Same weakness: CWE-120

V. Comments for CVE-2025-5408

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