CVE-2025-47187Network attack vector

Unauthenticated WAV upload via missing access control

Published Jul 23, 2025 · Updated Jul 29, 2025

Unrestricted file upload in Mitel 6800, 6900, and 6900w SIP Phones and 6970 Conference Unit allows remote attackers to upload WAV files. The upload interface accepts arbitrary WAV files without authenticating the request, but Mitel has not disclosed the affected endpoint or code path. Network access to the phone is required; repeated uploads can consume storage, while Mitel reports no effect on availability or operation.

CVSS severity5.3
Medium
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Mitel 6800, 6900, and 6900w SIP Phones and 6970 Conference Unit allows remote attackers to upload WAV files. The upload interface accepts arbitrary WAV files without authenticating the request, but Mitel has not disclosed the affected endpoint or code path. Network access to the phone is required; repeated uploads can consume storage, while Mitel reports no effect on availability or operation.

The record

CVE
CVE-2025-47187
Published
Jul 23, 2025
Updated
Jul 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.3MitelCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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