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CVE-2025-67822

Mitel Mivoice Mx-one authentication bypass

9.4 CRITICALEPSS 0.41%
  1. Published15 Jan 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Affected products

Mitel Mivoice Mx-one≥ 7.3 < 7.8 · 7.8

Remediation

Fixed in
Mitel Mivoice Mx-one≥ 7.8

References

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Frequently asked

Is CVE-2025-67822 being actively exploited?

CVE-2025-67822 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.41%.

How severe is CVE-2025-67822?

CVE-2025-67822 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 0.41% probability of exploitation.

Which products are affected by CVE-2025-67822?

Affected products include Mitel Mivoice Mx-one.

How do I fix CVE-2025-67822?

Upgrade affected software to a fixed version, for example Mitel Mivoice Mx-one 7.8 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-67822 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.