How severe is CVE-2023-39289?

CVE-2023-39289 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-39289 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39289?

CVE-2023-39289 affects Mitel Mivoice Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39289?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-39289 published?

CVE-2023-39289 was published on 2023-08-25 and last updated on 2026-06-17.

CVE-2023-39289

CVE-2023-39289 is a high-severity vulnerability in Mitel Mivoice Connect with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Mitel Mivoice Connect
Published: 2023-08-25
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-39289?: 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.
How severe is CVE-2023-39289?: CVE-2023-39289 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-39289 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39289?: CVE-2023-39289 affects Mitel Mivoice Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39289?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-39289 published?: CVE-2023-39289 was published on 2023-08-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mitel:mivoice_connect:*:*:*:*:*:*:*:*

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