CVE-2020-27154

HIGH

8.8

CVSS Score

Published: December 18, 2020 at 07:16 AM UTC

Updated: June 17, 2026 at 03:08 AM UTC

1 product affected across 1 vendorBusinesscti Enterprise

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Severity

HIGH8.8

Exploit prediction

EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Businesscti Enterprise · Mitel

95%

v < 6.4.117.0.0 ≤ v < 7.0.3

Affected range stops below 6.4.11, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

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

CVSS

8.8HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-20

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