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CVE-2022-29499 Mitel CVE debrief

CVE-2022-29499 is a Mitel MiVoice Connect data validation vulnerability that CISA added to its Known Exploited Vulnerabilities catalog. Because it is listed in KEV and marked as having known ransomware campaign use, organizations running MiVoice Connect should treat it as a high-priority remediation item and follow vendor update guidance without delay.

Vendor
Mitel
Product
MiVoice Connect
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-06-27
Original CVE updated
2022-06-27
Advisory published
2022-06-27
Advisory updated
2022-06-27

Who should care

Security, IT, and telecom administration teams responsible for Mitel MiVoice Connect deployments should care most, especially organizations with unpatched or widely accessible systems. Incident response and vulnerability management teams should also prioritize validation and tracking because CISA lists this issue as known exploited.

Technical summary

The supplied official sources identify the issue as a data validation vulnerability in Mitel MiVoice Connect. CISA’s KEV entry confirms active exploitation and notes known ransomware campaign use. The corpus does not provide additional technical details such as affected versions, attack vector, or CVSS scoring, so defensive guidance should rely on vendor remediation instructions and exposure reduction.

Defensive priority

High. CISA has placed CVE-2022-29499 in the Known Exploited Vulnerabilities catalog with a remediation due date of 2022-07-18, which indicates urgent patching and verification are warranted.

Recommended defensive actions

  • Identify all Mitel MiVoice Connect instances in the environment, including test and dormant systems.
  • Apply vendor-recommended updates or mitigations as soon as possible.
  • Verify remediation by confirming affected versions are no longer present.
  • Prioritize any internet-facing or business-critical deployments for immediate attention.
  • Review logs and monitoring for signs of suspicious activity around MiVoice Connect systems.
  • Track this CVE in vulnerability management and exception processes until remediation is confirmed.

Evidence notes

This debrief is based only on the provided official sources: CISA KEV lists CVE-2022-29499 as a known exploited vulnerability for Mitel MiVoice Connect, with date added 2022-06-27, due date 2022-07-18, and known ransomware campaign use marked as Known. The source corpus does not include vendor advisory text or patch version details, so no additional technical claims are made.

Official resources

CISA added CVE-2022-29499 to the Known Exploited Vulnerabilities catalog on 2022-06-27 and set a remediation due date of 2022-07-18. The KEV entry marks known ransomware campaign use as Known.