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CVE-2026-120278— WAVLINK WN536AX6-A VPN Client List ioos sub_41a7c0 missing authentication

Quick assessment

Affected
WAVLINK WN536AX6-A
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 WAVLINK WN536AX6-A（固件版本 V260507_2.0.0）中发现一个安全漏洞。受影响的是组件"VPN 客户端列表处理器”中位于 文件内的函数 和 。通过对参数 进行篡改，可导致认证机制失效。该攻击可远程发起。目前利用代码已公开并可能被使用。厂商已在漏洞披露初期收到相关通知。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-120278

Vulnerability Information
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Vulnerability Title
WAVLINK WN536AX6-A VPN Client List ioos sub_41a7c0 missing authentication
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in WAVLINK WN536AX6-A V260507_2.0.0. Impacted is the function sub_416d48/sub_41a7c0 of the file /bin/ioos of the component VPN Client List Handler. Performing a manipulation of the argument opt results in missing authentication. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WAVLINK WN536AX6-A V260507_2.0.0 cpe:2.3:a:wavlink:wn536ax6-a:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-120278

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III. Intelligence Information for CVE-2026-120278

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Vendor Advisories for CVE-2026-120278 (1)

Other References for CVE-2026-120278 (4)

Same Patch Batch · WAVLINK · 2026-11-01 · 15 CVEs total

CVE-2026-120277 10.0 CRITICAL WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injection
CVE-2026-120276 10.0 CRITICAL WAVLINK WN536AX6-A Web Management ioos sub_416760 os command injection
CVE-2026-120198 10.0 CRITICAL WAVLINK WL-WN530BE1-A protocol.csp con_check_read_finish command injection
CVE-2026-120195 10.0 CRITICAL WAVLINK WL-WN579A3-A Initial Setup Wizard adm.cgi set_wzdgwMesh os command injection
CVE-2026-120240 9.9 CRITICAL WAVLINK WN553X1-B WireGuard CLI Group ioos sub_41A748 os command injection
CVE-2026-120239 9.9 CRITICAL WAVLINK WN553X1-B WireGuard CLI ioos sub_419DA8 os command injection
CVE-2026-120238 9.9 CRITICAL WAVLINK WN553X1-B ovpn_file ioos sub_4162A8 os command injection
CVE-2026-120231 9.9 CRITICAL WAVLINK WN553X1-B OpenVPN CLI ioos sub_416568 os command injection
CVE-2026-120230 9.9 CRITICAL WAVLINK WN701AE ioos Web Backend del_vlan_group os command injection
CVE-2026-120228 9.9 CRITICAL WAVLINK WN553X1-B ioos Service sub_416D88 os command injection
CVE-2026-120227 9.9 CRITICAL WAVLINK WN701AE ioos Web Backend static_route_setting.sh del_staticrule os command injecti
CVE-2026-120197 9.9 CRITICAL WAVLINK WL-WN530HG4B wapi.cgi port_forward os command injection
CVE-2026-120196 9.9 CRITICAL WAVLINK WN579X3-D wapi.cgi port_forward os command injection
CVE-2026-120229 9.1 CRITICAL WAVLINK WN553X1-B ioos sub_416B50 os command injection

IV. Related Vulnerabilities

Same product: WN536AX6-A
Same vendor: WAVLINK
Same weakness: CWE-306