CVE-2026-2565

MEDIUM

Wavlink WL-NU516U1 20251208 - Buffer Overflow

Title source: llm

Description

A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSS v3 6.6
EPSS 0.0003
EPSS Percentile 8.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-121 CWE-119
Status published

Affected Products (1)

wavlink/wl-nu516u1_firmware < 2025-12-08

Timeline

Published Feb 16, 2026
Tracked Since Feb 18, 2026