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CVE-2026-104811— Mitel MiVoice Office 400 Music on Hold WAV File Upload Code Execution

Quick assessment

Affected
Mitel Mitel MiVoice Office 400
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.

Digital Canyon SA 发现了一个漏洞，允许远程攻击者在受影响的产品安装中执行任意代码。利用此漏洞可能需要身份认证。 该特定缺陷存在于 Web 门户的“配置 → 服务 → 等待音乐”功能中，该功能监听 TCP 443 端口。应用程序本意是允许用户上传 WAV 音频文件，但未正确验证上传文件的类型。攻击者可利用此行为上传恶意共享对象文件（.so 格式），而非合法的 WAV 文件。当受影响组件后续处理上传的文件时，攻击者控制的代码将在受影响进程的上下文中被加载并执行。这可能导致远程代码执行，并可能完全危及底

CVSS 8.4 · High
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I. Basic Information for CVE-2026-104811

Vulnerability Information
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Vulnerability Title
Mitel MiVoice Office 400 Music on Hold WAV File Upload Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
DigitalCanion SA has discovered a vulnerability that allows remote attackers to execute arbitrary code on affected installations of the product. Authentication may be required to exploit this vulnerability. The specific flaw exists within the Configuration → Services → Music on Hold functionality of the web portal listening on TCP port 443. The application is intended to allow users to upload WAV audio files but fails to properly validate the uploaded file type. An attacker can exploit this behavior to upload a malicious shared object (.so) instead of a WAV file. When the uploaded file is subsequently processed by the affected component, attacker-controlled code is loaded and executed in the context of the affected process. This can result in remote code execution and potentially full compromise of the underlying Linux system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/AU:Y/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mitel Mitel MiVoice Office 400 11.0.96.0 -

II. Public POCs for CVE-2026-104811

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III. Intelligence Information for CVE-2026-104811

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Security Blog Posts for CVE-2026-104811 (1)

Same Patch Batch · Mitel · 2026-10-05 · 8 CVEs total

CVE-2026-104805 8.5 HIGH Mitel MiVoice Office 400 Backup Restoration Arbitrary File Write Leading to Root Code Exec
CVE-2026-104706 8.4 HIGH Mitel MiVoice Office 400 view system files path traversal
CVE-2026-104810 8.4 HIGH Mitel MiVoice Office 400 File Management File Browser path traversal vulnerability
CVE-2026-104809 8.4 HIGH Mitel MiVoice Office 400 Shared Object Hijacking Leading to Arbitrary Code Execution
CVE-2026-104806 5.5 MEDIUM Mitel MiVoice Office 400 System Logs Path Traversal Information Disclosure
CVE-2026-104807 1.9 LOW Mitel MiVoice Office 400 stored Cross-Site Scripting
CVE-2026-104808 1.9 LOW Mitel MiVoice Office 400 stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: Mitel MiVoice Office 400
Same vendor: Mitel
Same weakness: CWE-434

V. Comments for CVE-2026-104811

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