CVE-2020-12456
8.8 · HIGHOverview
CVE-2020-12456 is a high-severity vulnerability affecting mitel mivoice_connect_client. It was published on August 26, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A remote code execution vulnerability in Mitel MiVoice Connect Client before 214.100.1223.0 could allow an attacker to execute arbitrary code in the chat notification window, due to improper rendering of chat messages. A successful exploit could allow an attacker to steal session cookies, perform directory traversal, and execute arbitrary scripts in the context of the Connect client.
Remediation
Check the references section for vendor advisories and patches from mitel. Update mivoice_connect_client to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| mitel | mivoice_connect_client | >= 0, < 214.100.1223.0 | Affected |
Frequently Asked Questions
What is CVE-2020-12456?
CVE-2020-12456 is a high-severity vulnerability affecting mitel mivoice_connect_client. It was published on August 26, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2020-12456?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-12456?
Check the references section for vendor advisories and patches from mitel. Update mivoice_connect_client to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-12456?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-12456 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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