CVE-2022-29499: in the CISA KEV catalogue
Mitel MiVoice Connect Data Validation Vulnerability. CISA added CVE-2022-29499 to the Known Exploited Vulnerabilities catalogue on 2022-06-27 with a default due date of 2022-07-18. Known ransomware campaign use: Known. Forensic triage flag: No.
The Service Appliance component in Mitel MiVoice Connect allows remote code execution due to incorrect data validation. (CISA description)
- Vendor / product
- Mitel MiVoice Connect
- CWE
- CWE-20
- CISA required action
- Apply updates per vendor instructions.
- EPSS
- 55%, percentile 99 (scored 2026-11-03)
EPSS puts about 55 in 100 odds (55%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 99% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2022-29499 in the CISA KEV catalogue?
Yes. CISA added CVE-2022-29499 (Mitel MiVoice Connect Data Validation Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2022-06-27. CISA's default due date for it is 2022-07-18.
Is CVE-2022-29499 used in ransomware attacks?
CISA marks known ransomware campaign use as Known for CVE-2022-29499.
What should I do about CVE-2022-29499?
CISA's required action: Apply updates per vendor instructions.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2022-29499