Mitel MiVoice Office 400 11.0.96.0 Music on Hold unrestricted upload

Summaryinfo

A vulnerability labeled as critical has been found in Mitel MiVoice Office 400 11.0.96.0. Affected by this vulnerability is an unknown functionality of the component Music on Hold. The manipulation results in unrestricted upload. This vulnerability is identified as CVE-2026-104811. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Mitel MiVoice Office 400 11.0.96.0. It has been classified as critical. Affected is an unknown part of the component Music on Hold. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at digitalcanion.com. This vulnerability is traded as CVE-2026-104811 since 10/02/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/05/2026). The MITRE ATT&CK project declares the attack technique as T1608.002.

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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Mitel

Name

• MiVoice Office 400

Version

• 11.0.96.0

License

• commercial

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Once again VulDB remains the best source for vulnerability data.

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