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Mitel Releases Security Advisory for Mitel SIP Phones

Mitel releases security advisory addressing two vulnerabilities in Mitel SIP Phones

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Summary

Mitel releases security advisory addressing two vulnerabilities in Mitel SIP Phones


Threat details

Introduction

Mitel has released security advisory addressing two vulnerabilities in Mitel SIP Phones including Mitel 6800 Series, 6900 Series, 6900w Series and 6970 Conference Unit.  

CVE-2025-47188 has a CVSSv3 base score of 9.8 and is a 'command injection' vulnerability that could allow an unauthenticated attacker to inject and execute arbitrary commands on the device. Exploitation could lead to disclosure or modification of sensitive system and user configuration data that could potentially impact device availability and operation. 

CVE-2025-47187 has a CVSSv3 base score of 5.3 and is an 'unauthenticated file upload' vulnerability that could allow an unauthenticated attacker to upload arbitrary files on the device that may lead to storage exhaustion without affecting the device's availability or operation.


Remediation advice

Affected organisations are encouraged to review the latest Mitel Security Advisory and upgrade to version R6.4.0.SP5 (or above) as soon as practicable. 



Last edited: 12 May 2025 1:57 pm