CVE-2026-3613

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.

CVSS v3 7.2 HIGH
CVSS v2.0 8.3 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

8.3^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:M/C:C/I:C/A:C

Exploitability : 6.4 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication MULTIPLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/ipaddr_Stack%20Buffer%20Overflow.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.349221	Permissions Required VDB Entry
https://vuldb.com/?id.349221	Third Party Advisory VDB Entry
https://vuldb.com/?submit.755341	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v240425:*:*:*:*:*:*:*

cpe:2.3:h:wavlink:wl-nu516u1:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-06 02:15

Updated : 2026-03-10 18:30

NVD link : CVE-2026-3613

Mitre link : CVE-2026-3613

CVE.ORG link : CVE-2026-3613

JSON object : View

Products Affected

wavlink

wl-nu516u1_firmware
wl-nu516u1

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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