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CVE-2026-120279— WAVLINK WN536AX6-A openvpn_cli protocol.csp os command injection

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 V260507 中发现一处漏洞。受影响组件为 openvpn_cli Handler，其文件 /protocol.csp 中的某个未知函数存在缺陷。攻击者可通过操纵参数 file_id 触发操作系统命令注入。该攻击可远程发起，利用代码已公开并可能被利用。厂商已在此漏洞披露初期收到通知。

CVSS 10.0 · Critical Updated Nov 02, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

WAVLINK WN536AX6-A openvpn_cli protocol.csp os command injection

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw has been found in WAVLINK WN536AX6-A V260507. The affected element is an unknown function of the file /protocol.csp of the component openvpn_cli Handler. Executing a manipulation of the argument file_id can lead to os command injection. The attack can be launched remotely. The exploit has been published 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: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	WN536AX6-A	V260507	`cpe:2.3:a:wavlink:wn536ax6-a::::::::`

II. Public POCs for CVE-2026-120279

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-120279

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Vendor Advisories for CVE-2026-120279 (1)

CVE-2026-120279 | WAVLINK WN536AX6-A V260507 openvpn_cli /protocol.csp file_id os command injection vdb-entry technical-description

Other References for CVE-2026-120279 (4)

https://github.com/pipiyyb/cve/blob/main/WAVLINK%20WN536AX6-A/WN536AX6-A_file_id.md exploit
https://vuldb.com/cve/CVE-2026-120279 third-party-advisory
https://vuldb.com/vuln/429623/cti signature permissions-required
https://vuldb.com/submit/919788 third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-120279

Same Patch Batch · WAVLINK · 2026-11-02 · 4 CVEs total

CVE-2026-120281	10.0 CRITICAL	WAVLINK WN536AX6-A OpenVPN protocol.csp strcpy stack-based overflow
CVE-2026-120280	10.0 CRITICAL	WAVLINK WN536AX6-A WireGuard protocol.csp wireguard_cli_group handler os command injection
CVE-2026-120282	9.9 CRITICAL	WAVLINK WN536AX6-A protocol.csp host_black os command injection

IV. Related Vulnerabilities

Same product: WN536AX6-A

Same vendor: WAVLINK

Same weakness: CWE-78