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Improper Input ValidationWeakness · CWE-20

CVE-2024-25290

HIGH · 8.0 CVSS v3.1 Published 2024-05-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable

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 · unedited
An issue in Casa Systems NL1901ACV R6B032 allows a remote attacker to execute arbitrary code via the userName parameter of the add function.

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 confidence

Command injection vulnerability in Casa Systems NL1901ACV router firmware R6B032. The 'add' function does not properly sanitize the 'userName' parameter, allowing an unauthenticated remote attacker to inject and execute arbitrary OS commands on the device.

MitigationApply vendor firmware patch when available. If no patch exists, consider network segmentation to restrict access to the device management interface or replace affected hardware.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS 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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model
    Access the router web interface or check device label to confirm the model is Casa Systems NL1901ACV
    Affected if Device model is NL1901ACV
  2. Check firmware version
    Log into the router admin interface and navigate to the status or system information page to view the installed firmware version
    Affected if Firmware version is R6B032 or earlier without the patch applied
  3. Verify management interface exposure
    Check network configuration to determine if the router web management interface (typically ports 80/443) is accessible from untrusted networks such as the internet
    Affected if Management interface is exposed to unauthenticated network access
  4. Test vulnerable endpoint accessibility
    Attempt to access the 'add' function endpoint (if known) or examine HTTP requests to the device to determine if unauthenticated command injection via the userName parameter is possible
    Affected if The add function with userName parameter accepts unauthenticated requests and processes injected commands

The device is affected if it is a Casa Systems NL1901ACV router running firmware R6B032 with its management interface accessible to untrusted networks, as the unauthenticated command injection flaw in the add function can be exploited.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor firmware patch when available. If no patch exists, consider network segmentation to restrict access to the device management interface or replace affected hardware.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-25290 in production — separate from our analysis above.

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What this is

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.

What belongs here
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  • Version or environment caveats, and links to real fixes
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