How severe is CVE-2025-67822?

CVE-2025-67822 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2025-67822 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67822?

CVE-2025-67822 primarily affects Mitel Mivoice Mx-one. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-67822?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-67822 have an EU (EUVD) identifier?

Yes. CVE-2025-67822 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206291.

When was CVE-2025-67822 published?

CVE-2025-67822 was published on 2026-01-15 and last updated on 2026-06-17.

CVE-2025-67822

CVE-2025-67822 is a critical-severity vulnerability in Mitel Mivoice Mx-one with a CVSS 3.x base score of 9.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206291
Weakness: CWE-287
Affected product: Mitel Mivoice Mx-one
Published: 2026-01-15
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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 mechanisms. A successful exploit could allow an attacker to gain unauthorized access to user or admin accounts in the system.
How severe is CVE-2025-67822?: CVE-2025-67822 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2025-67822 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67822?: CVE-2025-67822 primarily affects Mitel Mivoice Mx-one. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-67822?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-67822 have an EU (EUVD) identifier?: Yes. CVE-2025-67822 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206291.
When was CVE-2025-67822 published?: CVE-2025-67822 was published on 2026-01-15 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:mitel:mivoice_mx-one:*:*:*:*:*:*:*:*
cpe:2.3:a:mitel:mivoice_mx-one:7.8:-:*:*:*:*:*:*
cpe:2.3:a:mitel:mivoice_mx-one:7.8:sp1:*:*:*:*:*:*

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