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

This month

CRITICAL 9.4REMOTEUPGRADE

CVE-2025-67822 is a critical-severity flaw (CVSS 9.4) affecting mivoice mx-one. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.4 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-01-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mitel

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-15 22:16 UTCPublished CVE record published
2026-06-17 09:58 UTCUpdated Record last modified

mitel mivoice mx-one UPGRADE

Affected: >= 7.3 and < 7.8 · 7.8 · 7.8 sp1

Fixed in: 7.8

Safe to downgrade to: a release before 7.3

1. Check installed version

apt-cache policy mivoice-mx-one || rpm -q mivoice-mx-one || mivoice-mx-one --version

2. UPGRADE to 7.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mivoice-mx-one

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mivoice-mx-one

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.3 (Debian / Ubuntu)

apt-cache madison mivoice-mx-one sudo apt install mivoice-mx-one=<VERSION_BEFORE_7.3> sudo apt-mark hold mivoice-mx-one

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mivoice-mx-one sudo dnf downgrade mivoice-mx-one-<VERSION_BEFORE_7.3> sudo dnf versionlock add mivoice-mx-one

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-67822?

mivoice mx-one: upgrade to 7.8. Exact commands for each OS are on this page.

Is CVE-2025-67822 being exploited?

CVE-2025-67822 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-67822 affect?

CVE-2025-67822 affects mivoice mx-one. Severity is critical (CVSS 9.4). 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 me

How urgent is CVE-2025-67822?

Priority 47/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-36446 HIGH 8.8 UPGRADE The provisioning manager component of Mitel MiVoice MX-ONE through 7.6 SP1 could allow an authenticated attack

References

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