SECURITY ADVISORIES

Mitel Product Security Advisories are published for moderate and high-risk security issues. Each advisory provides information on the status of investigation and provides additional information on products confirmed to be affected and recommended action to be taken by customers. Advisories are posted in reverse chronological order.

This information is provided on an "as is" basis and does not grant or imply any guarantees or warranties, including the warranties of merchantability or fitness for a particular use. Mitel does not guarantee that any of the information is accurate or up to date. By using the information, you acknowledge and agree that your use of the information, or the documents or materials linked to this information, is at your own risk. In addition, Mitel’s provision of this information shall not and does not affect the terms or conditions of any agreement with Mitel. Mitel reserves the right to change or update this information without notice at any time.

Click here for a more comprehensive details on Mitel’s Product Security Policy ›

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Advisory ID CVE# Severity Publish Date Last Updated
Security Advisory Report - OBSO-2112-01 OBSO-2112-01 CVE-2021-44228, CVE-2021-45046, CVE-2021-45105 high
Mitel Product Security Advisory 22-0005 22-0005 CVE-2022-31784 critical
Mitel Product Security Advisory 22-0003 22-0003 CVE-2022-29854 medium
Mitel Product Security Advisory 22-0004 22-0004 CVE-2022-29855 medium
Security Advisory Report - OBSO-2204-01 OBSO-2204-01 CVE-2022-22965 critical
Security Advisory Report - OBSO-2107-01 OBSO-2107-01 medium
Security Advisory Report - OBSO-2203-03 OBSO-2203-03 high
Mitel Product Security Advisory 22-0001 22-0001 CVE-2022-26143 critical
Security Advisory Report - OBSO-2201-02 OBSO-2201-02 CVE-2025-XXXXX high
Security Advisory Report - OBSO-2202-02 OBSO-2202-02 high
Security Advisory Report - OBSO-2103-01 OBSO-2103-01 CVE-2021-3449 high
Security Advisory Report - OBSO-2111-01 OBSO-2111-01 high
Security Advisory Report - OBSO-2110-01 OBSO-2110-01 CVE-2025-XXXXX info
Mitel Product Security Advisory 21-0006 21-0006 CVE-2021-37586 medium
Security Advisory Report - OBSO-2107-02 OBSO-2107-02 CVE-2025-XXXXX info
Mitel Product Security Advisory 21-0005 21-0005 CVE-2021-32067, CVE-2021-32072, CVE-2021-32068, CVE-2021-32071, CVE-2021-32069, CVE-2021-32070 high to medium
Security Advisory Report - OBSO-2102-01 OBSO-2102-01 CVE-2021-3156 high
Security Advisory Report - OBSO-2009-01 OBSO-2009-01 medium
Mitel Product Security Advisory 21-0004 21-0004 CVE-2021-27402, CVE-2021-27401 medium
Mitel Product Security Advisory 21-0003 21-0003 CVE-2021-26714 critical
Mitel Product Security Advisory 21-0002 21-0002 CVE-2021-3352 critical
Mitel Product Security Advisory 21-0001 21-0001 CVE-2021-3176 high
Security Advisory Report - OBSO-2101-02 OBSO-2101-02 CVE-2025-XXXXX high
Mitel Product Security Advisory 20-0016 20-0016 CVE-2020-35547 critical
Security Advisory Report - OBSO-2011-01 OBSO-2011-01 high
Mitel Product Security Advisory 20-0013 20-0013 CVE-2019-9506 high
Mitel Product Security Advisory 20-0014 20-0014 CVE-2020-27639, CVE-2020-27640 high to medium
Mitel Product Security Advisory 20-0015 20-0015 CVE-2020-25606, CVE-2020-25608, CVE-2020-25609, CVE-2020-25610, CVE-2020-25611, CVE-2020-25612, CVE-2020-27340 high to medium
Mitel Product Security Advisory 20-0012 20-0012 CVE-2020-27154 high
Mitel Product Security Advisory 20-0011 20-0011 CVE-2020-24692, CVE-2020-24693 medium to low
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