CVE-2021-43984
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 · uneditedmySCADA myPRO: Versions 8.20.0 and prior has a feature where the firmware can be updated, which may allow an attacker to inject arbitrary operating system commands through a specific parameter.
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 · moderate confidencemySCADA myPRO versions 8.20.0 and prior contain a command injection vulnerability in the firmware update feature. An attacker can inject arbitrary operating system commands through a specific parameter during the firmware update process, potentially achieving full system compromise.
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<= 8.20.0CVSS 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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Verify mySCADA myPRO installationLocate the mySCADA myPRO installation directory or running process on the system. Check common installation paths or look for the mypro service/process.Affected if mySCADA myPRO software is present on the system
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Determine installed versionAccess the myPRO interface or use the product's built-in version check command to retrieve the exact version number installed.Affected if The installed version is 8.20.0 or any version lower than 8.20.0
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Confirm firmware update feature is accessibleCheck if the firmware update interface is exposed and accessible. This is typically found in the administrative or maintenance section of the myPRO web interface.Affected if The firmware update feature is enabled and accessible to users
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Check network exposure of update interfaceDetermine if the myPRO web interface and firmware update functionality is reachable from the network. Verify firewall rules and access controls around the service.Affected if The firmware update interface is network-accessible without proper segmentation or authentication restrictions
A system is affected if mySCADA myPRO version 8.20.0 or lower is installed and the firmware update feature is accessible.
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 dataUpgrade mySCADA myPRO to a version beyond 8.20.0 that addresses this vulnerability. If immediate patching is not possible, restrict network access to the firmware update interface and implement additional authentication controls.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-43984 — 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-2021-43984 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
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