TI-2020-16756 Aliases CVE-2020-27639 GHSA-622c-r8r9-89jj

The Bluetooth handset of Mitel MiVoice 6873i, 6930, and 6940 SIP phones with firmware…

LOW 36Published 2020-12-18 · Updated 2024-08-04

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00519 44th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 24

CPE	Versions	Role	Vendor
cpe:2.3:o:mitel:6873i_sip_firmware::::::::	before 5.1.0	Vulnerable	Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:-::::::	5.1.0	Vulnerable	Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp1::::::	5.1.0 sp1	Vulnerable	Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp2::::::	5.1.0 sp2	Vulnerable	Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp3::::::	5.1.0 sp3	Vulnerable	Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp4::::::	5.1.0 sp4	Vulnerable	Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp5::::::	5.1.0 sp5	Vulnerable	Mitel
cpe:2.3:h:mitel:6873i_sip:-:::::::*	not specified by NVD	Running on	Mitel
cpe:2.3:o:mitel:6930_sip_firmware::::::::	before 5.1.0	Vulnerable	Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:-::::::	5.1.0	Vulnerable	Mitel

cpe:2.3:o:mitel:6873i_sip_firmware:*:*:*:*:*:*:*:* Versions before 5.1.0 Vulnerable ·Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:-:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp1:*:*:*:*:*:* Versions 5.1.0 sp1 Vulnerable ·Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp2:*:*:*:*:*:* Versions 5.1.0 sp2 Vulnerable ·Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp3:*:*:*:*:*:* Versions 5.1.0 sp3 Vulnerable ·Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp4:*:*:*:*:*:* Versions 5.1.0 sp4 Vulnerable ·Mitel
cpe:2.3:o:mitel:6873i_sip_firmware:5.1.0:sp5:*:*:*:*:*:* Versions 5.1.0 sp5 Vulnerable ·Mitel
cpe:2.3:h:mitel:6873i_sip:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitel
cpe:2.3:o:mitel:6930_sip_firmware:*:*:*:*:*:*:*:* Versions before 5.1.0 Vulnerable ·Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:-:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·Mitel

Show 14 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp1::::::	5.1.0 sp1	Vulnerable	Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp2::::::	5.1.0 sp2	Vulnerable	Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp3::::::	5.1.0 sp3	Vulnerable	Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp4::::::	5.1.0 sp4	Vulnerable	Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp5::::::	5.1.0 sp5	Vulnerable	Mitel
cpe:2.3:h:mitel:6930_sip:-:::::::*	not specified by NVD	Running on	Mitel
cpe:2.3:o:mitel:6940_sip_firmware::::::::	before 5.1.0	Vulnerable	Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:-::::::	5.1.0	Vulnerable	Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp1::::::	5.1.0 sp1	Vulnerable	Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp2::::::	5.1.0 sp2	Vulnerable	Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp3::::::	5.1.0 sp3	Vulnerable	Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp4::::::	5.1.0 sp4	Vulnerable	Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp5::::::	5.1.0 sp5	Vulnerable	Mitel
cpe:2.3:h:mitel:6940_sip:-:::::::*	not specified by NVD	Running on	Mitel

cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp1:*:*:*:*:*:* Versions 5.1.0 sp1 Vulnerable ·Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp2:*:*:*:*:*:* Versions 5.1.0 sp2 Vulnerable ·Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp3:*:*:*:*:*:* Versions 5.1.0 sp3 Vulnerable ·Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp4:*:*:*:*:*:* Versions 5.1.0 sp4 Vulnerable ·Mitel
cpe:2.3:o:mitel:6930_sip_firmware:5.1.0:sp5:*:*:*:*:*:* Versions 5.1.0 sp5 Vulnerable ·Mitel
cpe:2.3:h:mitel:6930_sip:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:*:*:*:*:*:*:*:* Versions before 5.1.0 Vulnerable ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:-:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp1:*:*:*:*:*:* Versions 5.1.0 sp1 Vulnerable ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp2:*:*:*:*:*:* Versions 5.1.0 sp2 Vulnerable ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp3:*:*:*:*:*:* Versions 5.1.0 sp3 Vulnerable ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp4:*:*:*:*:*:* Versions 5.1.0 sp4 Vulnerable ·Mitel
cpe:2.3:o:mitel:6940_sip_firmware:5.1.0:sp5:*:*:*:*:*:* Versions 5.1.0 sp5 Vulnerable ·Mitel
cpe:2.3:h:mitel:6940_sip:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitel

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-27639
2026-10-03 Alias added: GHSA-622c-r8r9-89jj

References

Advisory 1

https://www.mitel.com/support/security-advisories

TI-2024-27770 A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones… KEVCVSS 3.1HIGH 7.2
TI-2022-12215 Mitel 6800 and 6900 Series SIP phone devices through 2022-04-27 have "undocumented… CVSS 3.1MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences