Critical severity · published Jan 15, 2026
CVE-2025-67822
A vulnerability in the Provisioning Manager component of Mitel MiVoice MX-ONE 7.3 (7.3.0.0.50) through 7.8 SP1 (7.8.1.0.14) could allow an unauthenticated attacker to conduct an…
9.4
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability in the Provisioning Manager component of Mitel MiVoice MX-ONE 7.3 (7.3.0.0.50) through 7.8 SP1 (7.8.1.0.14) could allow an unauthenticated attacker to conduct an authentication bypass attack due to improper authentication mechanisms. A successful exploit could allow an attacker to gain unauthorized access to user or admin accounts in the system.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MM
Mivoice Mx-one · Mitel
7.3 before 7.8; 7.8; 7.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-67822
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-67822
Vendor Advisory
https://www.mitel.com/support/security-advisories
Vendor Advisory
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-misa-2025-0009
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