Vulnerabilities (CVE)

Filtered by vendor Mitel Subscribe
Total 135 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2022-29499 1 Mitel 1 Mivoice Connect 2026-06-17 10.0 HIGH 9.8 CRITICAL
The Service Appliance component in Mitel MiVoice Connect through 19.2 SP3 allows remote code execution because of incorrect data validation. The Service Appliances are SA 100, SA 400, and Virtual SA.
CVE-2022-26143 1 Mitel 2 Micollab, Mivoice Business Express 2026-06-17 9.0 HIGH 9.8 CRITICAL
The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 allows remote attackers to obtain sensitive information and cause a denial of service (performance degradation and excessive outbound traffic). This was exploited in the wild in February and March 2022 for the TP240PhoneHome DDoS attack.
CVE-2021-3352 1 Mitel 1 Micontact Center Business 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
The Software Development Kit in Mitel MiContact Center Business from 8.0.0.0 through 8.1.4.1 and 9.0.0.0 through 9.3.1.0 could allow an unauthenticated attacker to access (view and modify) user data without authorization due to improper handling of tokens.
CVE-2021-3176 1 Mitel 1 Businesscti Enterprise 2026-06-17 6.0 MEDIUM 8.0 HIGH
The chat window of the Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.15 and 7.x before 7.1.2 could allow an attacker to gain access to user information by sending certain code, due to improper input validation of http links. A successful exploit could allow an attacker to view user information and application data.
CVE-2021-37586 1 Mitel 1 Interaction Recording 2026-06-17 4.0 MEDIUM 4.9 MEDIUM
The PowerPlay Web component of Mitel Interaction Recording Multitenancy systems before 6.7 could allow a user (with Administrator rights) to replay a previously recorded conversation of another tenant due to insufficient validation.
CVE-2021-32072 1 Mitel 1 Micollab 2026-06-17 4.0 MEDIUM 6.5 MEDIUM
The MiCollab Client Service component in Mitel MiCollab before 9.3 could allow an attacker to get source code information (disclosing sensitive application data) due to insufficient output sanitization. A successful exploit could allow an attacker to view source code methods.
CVE-2021-32071 1 Mitel 1 Micollab 2026-06-17 7.5 HIGH 9.8 CRITICAL
The MiCollab Client service in Mitel MiCollab before 9.3 could allow an unauthenticated user to gain system access due to improper access control. A successful exploit could allow an attacker to view and modify application data, and cause a denial of service for users.
CVE-2021-32070 1 Mitel 1 Micollab 2026-06-17 5.8 MEDIUM 5.4 MEDIUM
The MiCollab Client Service component in Mitel MiCollab before 9.3 could allow an attacker to perform a clickjacking attack due to an insecure header response. A successful exploit could allow an attacker to modify the browser header and redirect users.
CVE-2021-32069 1 Mitel 1 Micollab 2026-06-17 5.8 MEDIUM 4.8 MEDIUM
The AWV component of Mitel MiCollab before 9.3 could allow an attacker to perform a Man-In-the-Middle attack due to improper TLS negotiation. A successful exploit could allow an attacker to view and modify data.
CVE-2021-32068 1 Mitel 1 Micollab 2026-06-17 4.3 MEDIUM 3.7 LOW
The AWV and MiCollab Client Service components in Mitel MiCollab before 9.3 could allow an attacker to perform a Man-In-the-Middle attack by sending multiple session renegotiation requests, due to insufficient TLS session controls. A successful exploit could allow an attacker to modify application data and state.
CVE-2021-32067 1 Mitel 1 Micollab 2026-06-17 6.4 MEDIUM 6.5 MEDIUM
The MiCollab Client Service component in Mitel MiCollab before 9.3 could allow an attacker to view sensitive system information through an HTTP response due to insufficient output sanitization.
CVE-2021-27402 1 Mitel 1 Micollab 2026-06-17 6.4 MEDIUM 6.5 MEDIUM
The SAS Admin portal of Mitel MiCollab before 9.2 FP2 could allow an unauthenticated attacker to access (view and modify) user data by injecting arbitrary directory paths due to improper URL validation, aka Directory Traversal.
CVE-2021-27401 1 Mitel 1 Micollab 2026-06-17 4.3 MEDIUM 6.1 MEDIUM
The Join Meeting page of Mitel MiCollab Web Client before 9.2 FP2 could allow an attacker to access (view and modify) user data by executing arbitrary code due to insufficient input validation, aka Cross-Site Scripting (XSS).
CVE-2021-26714 1 Mitel 1 Micontact Center Enterprise 2026-06-17 7.5 HIGH 9.8 CRITICAL
The Enterprise License Manager portal in Mitel MiContact Center Enterprise before 9.4 could allow a user to access restricted files and folders due to insufficient access control. A successful exploit could allow an attacker to view and modify application data via Directory Traversal.
CVE-2020-9379 1 Mitel 1 Micontact Center Business 2026-06-17 4.0 MEDIUM 6.5 MEDIUM
The Software Development Kit of the MiContact Center Business with Site Based Security 8.0 through 9.0.1.0 before KB496276 allows an authenticated user to access sensitive information. A successful exploit could allow unauthorized access to user conversations.
CVE-2020-35547 1 Mitel 1 Micollab 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
A library index page in NuPoint Messenger in Mitel MiCollab before 9.2 FP1 could allow an unauthenticated attacker to gain access (view and modify) to user data.
CVE-2020-28351 1 Mitel 2 Shoretel, Shoretel Firmware 2026-06-17 4.3 MEDIUM 6.1 MEDIUM
The conferencing component on Mitel ShoreTel 19.46.1802.0 devices could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack (via the PATH_INFO to index.php) due to insufficient validation for the time_zone object in the HOME_MEETING& page.
CVE-2020-27640 1 Mitel 4 Mivoice 6930, Mivoice 6930 Firmware, Mivoice 6940 and 1 more 2026-06-17 4.8 MEDIUM 8.1 HIGH
The Bluetooth handset of Mitel MiVoice 6940 and 6930 MiNet phones with firmware before 1.5.3 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.
CVE-2020-27639 1 Mitel 6 6873i Sip, 6873i Sip Firmware, 6930 Sip and 3 more 2026-06-17 4.8 MEDIUM 8.1 HIGH
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.
CVE-2020-27340 1 Mitel 1 Micollab 2026-06-17 5.8 MEDIUM 6.1 MEDIUM
The online help portal of Mitel MiCollab before 9.2 could allow an attacker to redirect a user to an unauthorized website by executing malicious script due to insufficient access control.