CVE-2026-3613

HIGH 7.2

Wavlink WL-NU516U1 login.cgi sub_401A0C stack-based overflow

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	wavlink
Product	wl-nu516u1
Published	Mar 6, 2026
Last Updated	Mar 9, 2026

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CVSS v3 Breakdown

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

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Wavlink / WL-NU516U1

V240425

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.349221 vuldb.com: https://vuldb.com/?ctiid.349221 vuldb.com: https://vuldb.com/?submit.755341 github.com: https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/ipaddr_Stack%20Buffer%20Overflow.md

Credits

🔍 haimianbaobao (VulDB User) VulDB