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CVE-2026-104806— Mitel MiVoice Office 400 System Logs Path Traversal Information Disclosure

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 发现了一个路径遍历漏洞，攻击者可利用该漏洞访问预期目录之外的文件。 具体而言，该缺陷存在于 Web 管理门户中监听 TCP 443 端口的“维护 → 系统日志”功能模块中。应用程序未能正确验证用户提供的文件路径，使得攻击者能够操纵请求路径，从而遍历底层目录结构。 利用此漏洞，攻击者可以访问并下载位于预期系统日志目录之外的文件，包括潜在敏感的系统文件和应用程序文件。

CVSS 5.5 · Medium
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I. Basic Information for CVE-2026-104806

Vulnerability Information
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Vulnerability Title
Mitel MiVoice Office 400 System Logs Path Traversal Information Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
DigitalCanion has discovered a path traversal vulnerability that allows an attacker to access files outside of the intended directory. The specific flaw exists within the Maintenance → System Logs functionality of the web management portal listening on TCP port 443. The application fails to properly validate user-supplied file paths, allowing an attacker to manipulate the requested path and traverse the underlying directory structure. By exploiting this vulnerability, an attacker can access and download files located outside the intended system logs directory, including potentially sensitive system and application files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:Y/R:A/V:D/RE:L/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’dir....filename’
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-2026-104806

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III. Intelligence Information for CVE-2026-104806

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Other References for CVE-2026-104806 (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-2026-104811 8.4 HIGH Mitel MiVoice Office 400 Music on Hold WAV File Upload Code Execution
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-31

V. Comments for CVE-2026-104806

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