High severity · published Jan 29, 2021
CVE-2021-3176
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…
8.0
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BE
Businesscti Enterprise · Mitel
before 6.4.15; 7.0 before 7.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3176
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3176
Vendor Advisory
https://www.mitel.com/support/security-advisories
Vendor Advisory
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-0001
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