QwikSec

Security Database

CVE

CWE

Training

CVE-2026-2567

Published: Feb 16, 2026

Modified: Feb 23, 2026

PUBLISHED

CVSS v3.1

7.2

HIGH

Description

A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Performing a manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

Vendor	Product	Versions
Wavlink	WL-NU516U1	affected `20251208`

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-346174 | Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow

vdb-entry

technical-description

VDB-346174 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #752016 | Wavlink NU516U1 V251208 Stack-based Buffer Overflow

third-party-advisory

https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/nas.cgi_User1Passwd.md

exploit

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.