CVE-2026-104806 PUBLISHED

Mitel MiVoice Office 400 System Logs Path Traversal Information Disclosure

Assigner: NCSC.ch
Reserved: 02.10.2026 Published: 05.10.2026 Updated: 05.10.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 5.5

Product Status

Vendor Mitel
Product Mitel MiVoice Office 400
Versions Default: unknown
  • Version 11.0.96.0 is affected

Credits

  • Brian Mariani from DigitalCanion SA finder

References

Problem Types

  • CWE-31 Path traversal: 'dir\..\..\filename' CWE

Impacts

  • CAPEC-126 Path Traversal