CVE-2021-41870
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 · uneditedAn issue was discovered in the firmware update form in Socomec REMOTE VIEW PRO 2.0.41.4. An authenticated attacker can bypass a client-side file-type check and upload arbitrary .php files.
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 confidenceThe firmware update form in Socomec REMOTE VIEW PRO 2.0.41.4 contains a file upload vulnerability where client-side file-type validation can be easily bypassed, allowing authenticated attackers to upload arbitrary .php files. This could enable remote code execution on the affected system.
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= 2.0.41.4CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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.
-
Identify Socomec Remote View Pro installationLocate the application or check system information for the product name 'Socomec Remote View Pro' and its firmware version. This may be visible in the web interface, system diagnostics, or documentation.Affected if The product is Socomec Remote View Pro with firmware version 2.0.41.4
-
Verify the exact firmware versionAccess the firmware version information through the product's web interface, admin panel, or system status page. Compare the installed version to '2.0.41.4'.Affected if The installed firmware version is exactly 2.0.41.4
-
Check if firmware update form is accessibleNavigate to the firmware update functionality in the web interface. Look for an upload form related to firmware updates. Confirm whether the form accepts file uploads and uses client-side validation.Affected if The firmware update form is accessible and accepts file uploads with client-side validation only
-
Verify upload directory is web-accessibleInspect the web server configuration to determine where uploaded firmware files are stored. Check if the upload directory is accessible via HTTP/HTTPS and if uploaded files retain executable extensions like .php.Affected if Uploaded files are stored in a web-accessible directory and can be executed
A system is affected if it runs Socomec Remote View Pro firmware version 2.0.41.4, has the firmware update form accessible, and stores uploaded files in a web-accessible location where they can be executed.
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 dataImplement strict server-side file validation with an allowlist for permitted file types in the firmware upload handler, and ensure the uploaded files are stored outside the web root to prevent execution.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-41870 — 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-2021-41870 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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