CVE-2023-31458Network attack vector

Administrative access via unchanged default password

Published May 24, 2023 · Updated Jan 31, 2025

Authentication bypass in Mitel MiVoice Connect 19.3 SP2 (22.24.1500.0) and earlier allows remote attackers to gain administrative access. Initial installation of the Edge Gateway component does not require its default account password to be changed, leaving the administrative credentials usable. Exploitation requires internal network access and grants the ability to change arbitrary configuration settings and execute arbitrary commands.

CVSS severity9.8
Critical
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Mitel MiVoice Connect 19.3 SP2 (22.24.1500.0) and earlier allows remote attackers to gain administrative access. Initial installation of the Edge Gateway component does not require its default account password to be changed, leaving the administrative credentials usable. Exploitation requires internal network access and grants the ability to change arbitrary configuration settings and execute arbitrary commands.

The record

CVE
CVE-2023-31458
Published
May 24, 2023
Updated
Jan 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1078.001Valid Accounts: Default Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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