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CVE-2020-10377

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow...

9.8 Critical

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow an unauthenticated attacker to gain access to user credentials. A successful exploit could allow an attacker to access the system with compromised user credentials.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.56%Down 0.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow an unauthenticated attacker to gain access to user credentials. A successful exploit could allow an attacker to access the system with compromised user credentials.

Record
CVE-2020-10377
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-327
Updated
2026-11-02
CVE List No score

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow an unauthenticated attacker to gain access to user credentials. A successful exploit could allow an attacker to access the system with compromised user credentials.

Record
CVE-2020-10377
Updated
2026-11-02
EUVDEUVD-2020-2832 No score

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow an unauthenticated attacker to gain access to user credentials. A successful exploit could allow an attacker to access the system with compromised user credentials.

Record
EUVD-2020-2832
Updated
2026-11-03
GitHub AdvisoriesGHSA-fxr3-63w8-hvhx 9.8

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow...

A weak encryption vulnerability in Mitel MiVoice Connect Client before 214.100.1214.0 could allow an unauthenticated attacker to gain access to user credentials. A successful exploit could allow an attacker to access the system with compromised user credentials.

Record
GHSA-fxr3-63w8-hvhx
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-326, CWE-327
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-10377 is a critical vulnerability (CVSS 9.8) in Mitel Mivoice Connect Client, published April 17, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. No source names a fixed version.

References

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