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CVE-2026-120239— WAVLINK WN553X1-B WireGuard CLI ioos sub_419DA8 os command injection

Quick assessment

Affected
WAVLINK WN553X1-B
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 WN553X1-B 设备（固件版本 V260403_2.0.0）中发现了一个漏洞。该漏洞影响组件 WireGuard CLI Handler 中 /bin/ioos 文件的 sub_419DA8 函数。攻击者可通过操纵 file_id 参数，触发操作系统命令注入。该攻击可远程实施，且相关利用代码已公开并可能被使用。厂商已在此漏洞披露初期收到通知。

CVSS 9.9 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
WAVLINK WN553X1-B V260403_2.0.0 affected
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I. Basic Information for CVE-2026-120239

Vulnerability Information
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Vulnerability Title
WAVLINK WN553X1-B WireGuard CLI ioos sub_419DA8 os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in WAVLINK WN553X1-B V260403_2.0.0. This vulnerability affects the function sub_419DA8 of the file /bin/ioos of the component WireGuard CLI Handler. Performing a manipulation of the argument file_id results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could 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:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WAVLINK WN553X1-B V260403_2.0.0 cpe:2.3:a:wavlink:wn553x1-b:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-120239

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III. Intelligence Information for CVE-2026-120239

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Vendor Advisories for CVE-2026-120239 (1)

Other References for CVE-2026-120239 (4)

Same Patch Batch · WAVLINK · 2026-11-01 · 12 CVEs total

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-2026-120238 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: WN553X1-B
Same vendor: WAVLINK
Same weakness: CWE-78