CVE-2020-27154

8.8 highEPSS 1.0%

High (8.8) in mitel businesscti enterprise. EPSS 1.0% chance of exploitation in the next 30 days.

The chat window of Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.11 and 7.x before 7.0.3 could allow an attacker to gain access to user information by sending arbitrary code, due to improper input validation. A successful exploit could allow an attacker to view the user information and application data.

Severity

CVSS 3.1

8.8 high

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

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2020-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mitel:businesscti_enterprise

References

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

Check your stack JSON