Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 18 Jul 2022. Known ransomware use
Mivoice ConnectApplication · Mitel

CVE-2022-29499

CRITICAL · 9.8 CVSS v3.1 Published 2022-04-26
Fix available
A fix is available. Upgrade to after 22.20.2300.0 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild Ransomware High EPSS Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Service Appliance component in Mitel MiVoice Connect through 19.2 SP3 allows remote code execution because of incorrect data validation. The Service Appliances are SA 100, SA 400, and Virtual SA.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Mitel MiVoice Connect Service Appliances (SA 100, SA 400, and Virtual SA) through version 19.2 SP3 contain a data validation flaw allowing unauthenticated remote attackers to execute arbitrary code. The critical severity (CVSS 9.8) indicates the vulnerability is trivially exploitable over the network without credentials.

MitigationApply the vendor-provided patch or upgrade to a MiVoice Connect version beyond 19.2 SP3. If patching is immediately unfeasible, restrict network access to the Service Appliance management interfaces via firewall rules or VLAN isolation.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Mivoice ConnectApplication
Affected:<= 22.20.2300.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm MiVoice Connect installation and version
    Check the installed MiVoice Connect version by accessing the system administration interface or using the built-in version check command/tool provided by Mitel. Compare the version number against the affected range (<= 22.20.2300.0).
    Affected if The installed version is 22.20.2300.0 or lower, or the system reports a version within the 19.x through 22.x range indicating it is before the fix.
  2. Identify Service Appliance model
    Determine whether the deployed device is an SA 100, SA 400, or Virtual SA appliance by checking the system information in the appliance admin console or hardware labeling.
    Affected if The device is identified as an SA 100, SA 400, or Virtual SA appliance running a vulnerable MiVoice Connect version.
  3. Verify Service Appliance component is enabled
    Access the MiVoice Connect administration interface and check whether the Service Appliance component is actively enabled or running on the system.
    Affected if The Service Appliance component is enabled and running on the target system.
  4. Assess network accessibility
    Determine if the Service Appliance management interface or associated service ports are accessible from untrusted networks by reviewing firewall rules, exposed network interfaces, and external access controls.
    Affected if The Service Appliance is reachable from network segments that are not restricted to trusted IPs only, allowing unauthenticated network attackers to reach the vulnerable component.

A user is affected if MiVoice Connect version 22.20.2300.0 or lower is installed on an SA 100, SA 400, or Virtual SA appliance with the Service Appliance component enabled and exposed to untrusted networks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 22.20.2300.0
Interim mitigation

Apply the vendor-provided patch or upgrade to a MiVoice Connect version beyond 19.2 SP3. If patching is immediately unfeasible, restrict network access to the Service Appliance management interfaces via firewall rules or VLAN isolation.

Recommended fix Moderate confidence

Mitel MiVoice Connect version greater than 22.20.2300.0 or a version beyond 19.2 SP3 as specified in Mitel's official security advisory

  1. 1. Identify the current version of Mitel MiVoice Connect by accessing the SA 100, SA 400, or Virtual SA appliance administration interface
  2. 2. Navigate to the system information or about section to confirm the exact version number
  3. 3. Contact Mitel support or check the official Mitel security advisory page for the specific fixed version addressing CVE-2022-29499
  4. 4. Obtain the upgrade package from Mitel's official support portal or authorized distribution channels
  5. 5. Schedule a maintenance window following organizational change management procedures
  6. 6. Back up the current configuration and data according to best practices
  7. 7. Apply the upgrade following the documented upgrade procedure for your specific Service Appliance model
  8. 8. After upgrade, verify the new version is installed and test critical functionality
Caveat Before upgrading, review Mitel release notes for any configuration changes or deprecated features that may require adjustment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Mivoice Connect Exploited in the wild — priority engagement
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-29499 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data