How severe is CVE-2023-31459?

CVE-2023-31459 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-31459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31459?

CVE-2023-31459 affects Mitel Mivoice Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31459?

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-2023-31459 published?

CVE-2023-31459 was published on 2023-05-24 and last updated on 2026-06-17.

CVE-2023-31459

CVE-2023-31459 is a high-severity vulnerability in Mitel Mivoice Connect with a CVSS 3.x base score of 8.8. 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-640.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-640
Affected product: Mitel Mivoice Connect
Published: 2023-05-24
Last modified: 2026-06-17

Description

A vulnerability in the Connect Mobility Router component of Mitel MiVoice Connect versions 9.6.2208.101 and earlier could allow an unauthenticated attacker with internal network access to authenticate with administrative privileges, because the initial installation does not enforce a password change. A successful exploit could allow an attacker to make arbitrary configuration changes and execute arbitrary commands.

Frequently asked questions

What is CVE-2023-31459?: A vulnerability in the Connect Mobility Router component of Mitel MiVoice Connect versions 9.6.2208.101 and earlier could allow an unauthenticated attacker with internal network access to authenticate with administrative privileges, because the initial installation does not enforce a password change. A successful exploit could allow an attacker to make arbitrary configuration changes and execute arbitrary commands.
How severe is CVE-2023-31459?: CVE-2023-31459 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-31459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31459?: CVE-2023-31459 affects Mitel Mivoice Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31459?: 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-2023-31459 published?: CVE-2023-31459 was published on 2023-05-24 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Mitel Mivoice Connect

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