CVE-2020-27154
CVE-2020-27154 is a high-severity vulnerability in Mitel Businesscti Enterprise with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Mitel Businesscti Enterprise
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2020-27154?
- 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.
- How severe is CVE-2020-27154?
- CVE-2020-27154 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-27154 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-27154?
- CVE-2020-27154 affects Mitel Businesscti Enterprise. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-27154?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-27154 published?
- CVE-2020-27154 was published on 2020-12-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mitel:businesscti_enterprise:*:*:*:*:*:windows:*:*
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