CVE-2025-47187 File upload in n/a

High 7.5 Published Updated

Unauthenticated attackers can upload arbitrary WAV files to Mitel SIP phones, potentially exhausting storage and causing denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-47187?

CVE-2025-47187 is a high-severity vulnerability in n/a, published on 23 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-434

Which versions are affected by CVE-2025-47187?

How do I fix CVE-2025-47187?

No fix has been published for CVE-2025-47187 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-47187 being exploited?

There is no known exploitation of CVE-2025-47187 in the wild and no public exploit code.

Sources

Also known as GHSA-676m-p53v-8qw7.

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