high
8.1
Advisory Published
Updated

CVE-2020-27639

First published: Fri Dec 18 2020(Updated: )

The Bluetooth handset of Mitel MiVoice 6873i, 6930, and 6940 SIP phones with firmware before 5.1.0.SP6 could allow an unauthenticated attacker within Bluetooth range to pair a rogue Bluetooth device when a phone handset loses connection, due to an improper pairing mechanism. A successful exploit could allow an attacker to eavesdrop on conversations.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Mitel 6873i Sip Firmware<5.1.0
Mitel 6873i Sip Firmware=5.1.0
Mitel 6873i Sip Firmware=5.1.0-sp1
Mitel 6873i Sip Firmware=5.1.0-sp2
Mitel 6873i Sip Firmware=5.1.0-sp3
Mitel 6873i Sip Firmware=5.1.0-sp4
Mitel 6873i Sip Firmware=5.1.0-sp5
Mitel 6873i Sip
Mitel 6930 Sip Firmware<5.1.0
Mitel 6930 Sip Firmware=5.1.0
Mitel 6930 Sip Firmware=5.1.0-sp1
Mitel 6930 Sip Firmware=5.1.0-sp2
Mitel 6930 Sip Firmware=5.1.0-sp3
Mitel 6930 Sip Firmware=5.1.0-sp4
Mitel 6930 Sip Firmware=5.1.0-sp5
Mitel 6930 Sip
Mitel 6940 Sip Firmware<5.1.0
Mitel 6940 Sip Firmware=5.1.0
Mitel 6940 Sip Firmware=5.1.0-sp1
Mitel 6940 Sip Firmware=5.1.0-sp2
Mitel 6940 Sip Firmware=5.1.0-sp3
Mitel 6940 Sip Firmware=5.1.0-sp4
Mitel 6940 Sip Firmware=5.1.0-sp5
Mitel 6940 Sip

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Frequently Asked Questions

  • What is the vulnerability ID for this Mitel phone vulnerability?

    The vulnerability ID for this Mitel phone vulnerability is CVE-2020-27639.

  • Which Mitel SIP phone models are affected by this vulnerability?

    The Mitel MiVoice 6873i, 6930, and 6940 SIP phones are affected by this vulnerability.

  • What is the severity of CVE-2020-27639?

    The severity of CVE-2020-27639 is high.

  • What is the impact of CVE-2020-27639?

    The impact of CVE-2020-27639 is that an unauthenticated attacker within Bluetooth range can pair a rogue Bluetooth device with the phone when the handset loses connection.

  • How can I fix the CVE-2020-27639 vulnerability?

    To fix the CVE-2020-27639 vulnerability, update the firmware of the Mitel MiVoice 6873i, 6930, and 6940 SIP phones to version 5.1.0.SP6 or higher.

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