Read the docs
TI-2020-16505 Aliases CVE-2020-27154GHSA-86w2-3m2v-xrcg

The chat window of Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.11…

Priority MEDIUM 40CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01036 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mitel:businesscti_enterprise:*:*:*:*:*:windows:*:*before 6.4.11; 7.0.0 to before 7.0.3VulnerableMitel
  • cpe:2.3:a:mitel:businesscti_enterprise:*:*:*:*:*:windows:*:* Versions before 6.4.11; 7.0.0 to before 7.0.3 Vulnerable ·Mitel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27154
  2. 2026-10-03 Alias added: GHSA-86w2-3m2v-xrcg

References

Advisory 1

  • TI-2021-02253 The chat window of the Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before… CVSS 3.1HIGH 8.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences