CVE-2020-10377
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA weak encryption vulnerability in Mitel MiVoice Connect Client prior to version 214.100.1214.0 allows unauthenticated attackers to intercept or decrypt user credentials due to inadequate cryptographic protections in the client. This enables full system access using stolen credentials.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 214.100.1213.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Locate installed Mitel MiVoice Connect Client versionOpen the application and navigate to Help > About, or check the installed programs list in Windows Control Panel > Programs and Features to find the version numberAffected if Version displayed is 214.100.1213.0 or earlier
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Query version via command lineIf available, run the application's executable with a version flag (such as -v or --version) or check registry keys under HKEY_LOCAL_MACHINE\SOFTWARE\Mitel if the product stores version info thereAffected if Queried version is 214.100.1213.0 or lower
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Verify credential handling behaviorInspect network traffic from the client to the server using a packet capture tool (such as Wireshark) to observe whether credentials are transmitted using weak or identifiable encryption patternsAffected if Credentials are observable in plaintext or using weak/obvious encryption encoding in captured traffic
The environment is affected if the installed Mitel MiVoice Connect Client version is 214.100.1213.0 or lower, since earlier versions contain inadequate cryptographic protections for user credentials.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate all Mitel MiVoice Connect Client installations to version 214.100.1214.0 or later to remediate the weak encryption vulnerability. Review and enforce strong encryption protocols across the deployment.
214.100.1214.0
- 1. Verify current Mitel MiVoice Connect Client version by navigating to Help > About in the application
- 2. If version is 214.100.1213.0 or lower, download the updated client version 214.100.1214.0 from the official Mitel download portal or your designated software distribution point
- 3. Ensure all users are logged out of the application before proceeding with the upgrade
- 4. Uninstall the current version of MiVoice Connect Client from each affected workstation
- 5. Install the new version 214.100.1214.0 on each affected workstation
- 6. After installation, verify the version number displays as 214.100.1214.0 or higher in Help > About
- 7. Instruct all users to change their passwords as a precautionary measure since the vulnerability may have exposed credentials
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-10377 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-10377 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data