CVE-2026-3613
Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflow
- State
- Published
- Severity
- 8.6 High
- Published
- Mar 6, 2026
- Updated
- Mar 9, 2026
- Reserved
- Mar 5, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.2 High | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 8.3 High | AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WL-NU516U1Wavlink |
|
References
- VDB-349221 | Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflowvdb-entrytechnical-description
- VDB-349221 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #755341 | Wavlink NU516U1 V240425 Stack-based Buffer Overflowthird-party-advisory
- https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/ipaddr_Stack%20Buffer%20Overflow.mdexploit
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