CVE-2024-31967Network attack vector

Unauthenticated disclosure of user and configuration data

Published May 2, 2024 · Updated Aug 2, 2024

Improper access control in affected Mitel 6800/6900 SIP Phones and 6970 Conference Units allows remote attackers to read user and configuration data. Mitel has not disclosed the affected interface or the operation that fails to enforce access control. The attack requires no authentication; affected releases include 6.3 SP3 HF4 and earlier for 6800/6900 phones and 5.1.1 SP8 and earlier for 6970 units, with no reported data modification or service interruption.

CVSS severity5.3
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in affected Mitel 6800/6900 SIP Phones and 6970 Conference Units allows remote attackers to read user and configuration data. Mitel has not disclosed the affected interface or the operation that fails to enforce access control. The attack requires no authentication; affected releases include 6.3 SP3 HF4 and earlier for 6800/6900 phones and 5.1.1 SP8 and earlier for 6970 units, with no reported data modification or service interruption.

The record

CVE
CVE-2024-31967
Published
May 2, 2024
Updated
Aug 2, 2024
Vendor
Mitel
Product
Mitel 6800 Series SIP Phones
Classifications
CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mitel · Mitel 6800 Series SIP Phonesversion=0 <=6.3
Mitel · Mitel 6900 Series SIP Phonesversion=0 <=6.3.3
Mitel · Mitel 6970 Conference Unitversion=0 <=5.1.1

Published CVSS scores

5.3MitelCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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

CWE-284Improper Access Control

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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