A vulnerability in the Connect Mobility Router component of Mitel MiVoice Connect through 9.6.2208.101 could allow an unauthenticated attacker to conduct an account enumeration attack due to improper configuration. A successful exploit could allow an attacker to access system information.
Conclusion & alert: CVE-2023-39289 is rated Moderate Risk (43.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.49%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.31% | 0.49% | +0.18% |
| 2 | 2026-05-20 | 0.25% | 0.31% | +0.06% |
| 3 | 2025-11-21 | — | 0.25% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mitel | mivoice_connect | <= 9.6.2208.101 | cpe:2.3:a:mitel:mivoice_connect:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.mitel.com/support/security-advisories | Vendor Advisory |
| https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-23-0011 | Vendor Advisory |