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A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit through 6.4 SP4, could allow an unauthenticated attacker to perform a file upload attack due to missing authentication mechanisms. A successful exploit could allow an attacker to upload arbitrary WAV files, which may potentially exhaust the phone's storage without affecting the phone's availability or operation.
Reserved 2025-05-02 | Published 2025-07-23 | Updated 2025-07-23 | Assigner mitrewww.mitel.com/support/security-advisories
www.mitel.com/...el-product-security-advisory-misa-2025-0004
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