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CVE-2026-113802— Wavlink WL-WN530BE1-A Unauthenticated OS Command Injection in ioos protocol.csp ovpn_file Handler

Quick assessment

Affected
Wavlink WL-WN530BE1-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.

Wavlink WL-WN530BE1-A 固件（版本 M30BE1_V251117 及更早版本）在 ioos 二进制文件的 sub_23B54 函数中存在操作系统命令注入漏洞。该漏洞源于对 请求中未经验证的 参数（当 时）直接传递给 函数。远程未认证攻击者可通过伪造 请求头绕过身份验证，并以 root 权限执行任意命令。

CVSS 9.8 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
Wavlink WL-WN530BE1-A M30BE1_V251117 affected
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I. Basic Information for CVE-2026-113802

Vulnerability Information
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Vulnerability Title
Wavlink WL-WN530BE1-A Unauthenticated OS Command Injection in ioos protocol.csp ovpn_file Handler
Source: CVE Program / CVE List V5
Vulnerability Description
Wavlink WL-WN530BE1-A firmware through M30BE1_V251117 contains an OS command injection vulnerability in the sub_23B54 function of the ioos binary, which passes the unsanitized file_id parameter of /protocol.csp?opt=ovpn_file requests with type=del to popen(). A remote unauthenticated attacker can send a forged IP-FROM: 127.0.0.1 header to bypass login and execute arbitrary commands as root.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 WL-WN530BE1-A M30BE1_V251117 -

II. Public POCs for CVE-2026-113802

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III. Intelligence Information for CVE-2026-113802

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Other References for CVE-2026-113802 (2)

IV. Related Vulnerabilities

Same product: WL-WN530BE1-A
Same vendor: Wavlink
Same weakness: CWE-78

V. Comments for CVE-2026-113802

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