CVE-2021-38418
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 · uneditedDelta Electronics DIALink versions 1.2.4.0 and prior runs by default on HTTP, which may allow an attacker to be positioned between the traffic and perform a machine-in-the-middle attack to access information without authorization.
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 confidenceDelta Electronics DIALink versions 1.2.4.0 and prior defaults to unencrypted HTTP communication, allowing an attacker positioned on the network path to intercept traffic and perform machine-in-the-middle attacks to gain unauthorized access to sensitive information.
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<= 1.2.4.0CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Identify DIALink installed versionLocate the DIALink installation directory and check the version information in the application metadata, about dialog, or version file (typically found in the program files folder or via the application's Help > About section)Affected if The installed version is 1.2.4.0 or any earlier version
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Inspect network communication protocol settingsAccess the DIALink configuration panel or settings file and locate the network communication or protocol settings sectionAffected if HTTP is enabled or set as the default protocol without HTTPS enforcement
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Verify TLS/SSL encryption configurationCheck the DIALink configuration files (such as config.xml, settings.ini, or similar) for encryption-related parameters like enableTLS, useSSL, or protocol type settingsAffected if TLS/SSL encryption is disabled, not configured, or set to false/off
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Confirm HTTPS is not enforced for remote accessReview the server or communication settings to determine if HTTPS is mandatory for client connections or if HTTP fallback is allowedAffected if The system allows unencrypted HTTP connections or does not enforce HTTPS for remote access
Your environment is affected if DIALink version is 1.2.4.0 or prior AND HTTP communication is enabled or TLS/SSL encryption is not enforced.
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.
From vendor dataEnable TLS/SSL encryption on DIALink and configure it to use HTTPS by default, or implement VPN tunneling for remote access to protect communications from interception.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-38418 — 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-2021-38418 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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