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CVE-2026-3613

Published: Mar 6, 2026

Modified: Mar 9, 2026

PUBLISHED

CVSS v3.1

7.2

HIGH

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.

Vendor	Product	Versions
Wavlink	WL-NU516U1	affected `V240425`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-349221 | Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflow

vdb-entry

technical-description

VDB-349221 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #755341 | Wavlink NU516U1 V240425 Stack-based Buffer Overflow

third-party-advisory

https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/ipaddr_Stack%20Buffer%20Overflow.md

exploit

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