CVE-2020-12456

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CVSS v3.1

8.8

EPSS

3.06%

Published

Aug 26, 2020

Modified

Nov 3, 2025

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-22

Affected Products (1)

mitel · mivoice_connect_client (up to 214.100.1223.0)vulnerable

References (4)

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

Vendor Advisory

https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0006

Vendor Advisory

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

Vendor Advisory

https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0006

Vendor Advisory

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