CVE-2026-3613— Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflow
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I. Basic Information for CVE-2026-3613
Vulnerability Information
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Vulnerability Title
Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was identified in Wavlink WL-NU516U1 V240425. This vulnerability affects the function sub_401A0C of the file /cgi-bin/login.cgi. Such manipulation of the argument ipaddr leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
WAVLINK WL-NU516U1 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WAVLINK WL-NU516U1是中国睿因（WAVLINK）公司的一款无线打印服务器。 Wavlink WL-NU516U1 V240425版本存在安全漏洞，该漏洞源于对文件/cgi-bin/login.cgi中参数ipaddr的错误操作，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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Wavlink | WL-NU516U1 | V240425 | cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-3613
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|---|
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- Submit #755341: Wavlink NU516U1 V240425 Stack-based Buffer Overflowthird-party-advisory
- CVE-2026-3613 Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflowvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-3613
IV. Related Vulnerabilities
Same product: WL-NU516U1
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Wavlink WL-NU516U1 adm.cgi usb_p910 command injection - CVE-2026-3661
Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection - CVE-2026-3612
Wavlink WL-NU516U1 OTA Online Upgrade adm.cgi sub_405AF4 com
Same vendor: Wavlink
- CVE-2026-8230
Wavlink NU516U1 login.cgi sys_login1 os command injection - CVE-2026-8229
Wavlink NU516U1 wireless.cgi WifiBasic os command injection - CVE-2026-8228
Wavlink NU516U1 wireless.cgi advance os command injection - CVE-2026-8227
Wavlink NU516U1 adm.cgi wzdapMesh os command injection - CVE-2026-8192
Wavlink NU516U1 adm.cgi wzdap os command injection
Same weakness: CWE-121
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V. Comments for CVE-2026-3613
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