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TI-2021-02253 Aliases CVE-2021-3176GHSA-fxj9-j9p7-r939

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

Priority LOW 37CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
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 the Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.15 and 7.x before 7.1.2 could allow an attacker to gain access to user information by sending certain code, due to improper input validation of http links. A successful exploit could allow an attacker to view user information and application data.

Why it matters now

EPSS 0.00886 59th 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 6.4.15; 7.0 to before 7.1.2VulnerableMitel
  • cpe:2.3:a:mitel:businesscti_enterprise:*:*:*:*:*:windows:*:* Versions before 6.4.15; 7.0 to before 7.1.2 Vulnerable ·Mitel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3176
  2. 2026-10-03 Alias added: GHSA-fxj9-j9p7-r939

References

Advisory 2

  • TI-2020-16505 The chat window of Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.11… CVSS 3.1HIGH 8.8

Sources

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