VDB-317447 · CVE-2025-47187 · EUVD-2025-22465

Mitel 6800 Series/6900 Series/6900w Series up to 6.4 SP4 WAV File missing authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Mitel 6800 Series, 6900 Series and 6900w Series up to 6.4 SP4. This impacts an unknown function of the component WAV File Handler. The manipulation leads to missing authentication. This vulnerability is uniquely identified as CVE-2025-47187. No exploit exists.

Detailsinfo

A vulnerability was found in Mitel 6800 Series, 6900 Series and 6900w Series up to 6.4 SP4. It has been rated as critical. This issue affects an unknown code of the component WAV File Handler. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at mitel.com. The identification of this vulnerability is CVE-2025-47187 since 05/02/2025. The exploitation is known to be easy. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-22465). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Mitel

Name

Version

6.4 SP4

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/02/2025 CVE reserved
07/23/2025 +82 days Advisory disclosed
07/23/2025 +0 days VulDB entry created
07/30/2025 +7 days VulDB entry last update

Sourcesinfo

Advisory: mitel.com
Status: Confirmed

CVE: CVE-2025-47187 (🔒)
GCVE (CVE): GCVE-0-2025-47187
GCVE (VulDB): GCVE-100-317447
EUVD: 🔒

Entryinfo

Created: 07/23/2025 22:43
Updated: 07/30/2025 02:00
Changes: 07/23/2025 22:43 (53), 07/24/2025 00:37 (1), 07/30/2025 02:00 (1)
Complete: 🔍
Cache ID: 216::103