Security readout for executives and security teams
Plain-English summary
A remotely reachable flaw in Mitel MiVoice Connect Service Appliances can let an unauthenticated attacker execute code, potentially taking control of voice-service infrastructure. It affects SA 100, SA 400, and Virtual SA deployments through version 19.2 SP3. CISA lists the vulnerability as known exploited, making prompt investigation necessary.
Executive priority
Treat as an immediate remediation and exposure-assessment priority. The combination of unauthenticated remote code execution, potential full-system impact, and confirmed exploitation warrants rapid ownership, isolation where necessary, vendor-guided remediation, and investigation of previously exposed systems.
Technical view
CVE-2022-29499 is an incorrect data-validation vulnerability (CWE-20) in the MiVoice Connect Service Appliance component. Its CVSS 3.1 score is 9.8: network-accessible, low complexity, no privileges or user interaction required, with potentially high confidentiality, integrity, and availability impact.
Likely exposure
Organizations using SA 100, SA 400, or Virtual SA appliances running MiVoice Connect through 19.2 SP3 are potentially exposed. Risk is highest where an affected appliance is reachable from untrusted networks. The supplied evidence does not identify later affected versions or specific exposed services.
Exploitation context
CISA KEV inclusion supports that CVE-2022-29499 has been exploited in the wild. The supplied sources do not establish exploitation scale, current campaign activity, attacker identities, or reliable indicators of compromise.
Researcher notes
The source bundle identifies incorrect data validation but does not specify the vulnerable input path, protocol, attack artifacts, patch version, or detection signatures. Researchers should use Mitel's advisory for supported remediation details and avoid assuming that absence of obvious appliance symptoms excludes compromise.
Mitigation direction
- Inventory all physical and virtual MiVoice Connect Service Appliances and record their exact versions.
- Consult Mitel advisory 22-0002 and apply its supported remediation or upgrade guidance.
- Restrict affected appliances from untrusted networks until vendor-directed remediation is complete.
- Prioritize incident-response review for affected appliances that were externally reachable.
Validation and detection
- Confirm whether each appliance is an SA 100, SA 400, or Virtual SA.
- Verify whether installed MiVoice Connect versions are 19.2 SP3 or earlier.
- Review network controls to determine whether untrusted systems could reach affected appliances.
- After remediation, confirm versions and protections match Mitel's published advisory.
- Examine available appliance and network logs for unexplained access or administrative changes.
Public sources used
The source record changed after analysis: Material source record changed after analysis.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-29499 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- ADP timelineCISA-ADP
CVE-2022-29499 added to CISA KEV
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2022-06-27T00:00:00.000Z: CVE-2022-29499 added to CISA KEV
Source materials
- CVE List V5 sourceCVE List V5
- https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0002CVE reference, mitre · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-29499CVE reference, CISA-ADP · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.