Mitel MiVoice Office 400 11.0.96.0 File Browser path traversal

Summaryinfo

A vulnerability described as critical has been identified in Mitel MiVoice Office 400 11.0.96.0. This affects an unknown part of the component File Browser. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2026-104810. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Mitel MiVoice Office 400 11.0.96.0. It has been rated as critical. Affected by this issue is an unknown code block of the component File Browser. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

This vulnerability allows remote attackers to delete sensitive files on vulnerable installations of Mitel MiVoice Office 400. Authentication is required to exploit this vulnerability. The specific flaw exists within the web portal listening on TCP port 443, under Maintenance → File Management → File Browser, which is affected by a directory traversal vulnerability. By exploiting this vulnerability, an authenticated attacker can access and delete files outside of the intended directory, including files belonging to the Mitel application and the underlying Linux system. Deleting critical system or application files can result in a denial-of-service condition affecting the underlying system.

The advisory is available at digitalcanion.com. This vulnerability is handled as CVE-2026-104810 since 10/02/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/05/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Mitel

Name

• MiVoice Office 400

Version

• 11.0.96.0

License

• commercial

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CPE 2.2info

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