CVE-2025-47187

High

Description

A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones through 6.4 SP4 (R6.4.0.4006), and the 6970 Conference Unit through 6.4 SP4 (R6.4.0.4006) or version V1 R0.1.0, 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.

SeverityHigh
CVSS7.5
Exploit probability—
Product6900w Series SIP Phone
PublishedJul 23, 2025
First seenJul 23, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Mitel 6900w Series SIP Phonev ≤ 6.4 SP4 (R6.4.0.4006)—
Mitel 6970 Conference Unitv ≤ 6.4 SP4 (R6.4.0.4006), 1 R0.1.0—

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