What is CVE-2020-12456?

CVE-2020-12456 is a high-severity vulnerability in Mitel Mivoice Connect Client, classified under Path Traversal. CVSS score: 8.8/10. Published 2020-08-26.

How severe is CVE-2020-12456?

High severity. CVSS v3 base score is 8.8 out of 10.

Path Traversal in Mitel Mivoice Connect Client

CVE-2020-12456

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.031 (86.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mitel Mivoice_connect_client
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-12456?: CVE-2020-12456 is a high-severity vulnerability in Mitel Mivoice Connect Client, classified under Path Traversal. CVSS score: 8.8/10. Published 2020-08-26.
How severe is CVE-2020-12456?: High severity. CVSS v3 base score is 8.8 out of 10.