What is CVE-2025-67822?

CVE-2025-67822 is a critical-severity vulnerability in Mitel Mivoice_mx-one, classified under Improper Authentication. CVSS score: 9.4/10. Published 2026-01-15.

How severe is CVE-2025-67822?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Auth bypass in Mitel Mivoice_mx-one

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 authentication bypass attack due to improper authentication m…

Vulnerability class: Broken Authentication

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: 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 — versions 7.8
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-67822?: CVE-2025-67822 is a critical-severity vulnerability in Mitel Mivoice_mx-one, classified under Improper Authentication. CVSS score: 9.4/10. Published 2026-01-15.
How severe is CVE-2025-67822?: Critical severity. CVSS v3 base score is 9.4 out of 10.