Command InjectionWeakness · CWE-77

CVE-2024-3871

CRITICAL · 9.8 CVSS v3.1 Published 2024-04-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
The Delta Electronics DVW-W02W2-E2 devices expose a web administration interface to users. This interface implements multiple features that are affected by command injections and stack overflows vulnerabilities. Successful exploitation of these flaws would allow remote unauthenticated attackers to gain remote code execution with elevated privileges on the affected devices. This issue affects DVW-W02W2-E2 through version 2.5.2.

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 confidence

The Delta Electronics DVW-W02W2-E2 wireless device web administration interface contains multiple critical vulnerabilities including command injection and stack overflow flaws. These allow remote unauthenticated attackers to achieve RCE with elevated privileges on the affected device.

MitigationUpgrade DVW-W02W2-E2 firmware to a version beyond 2.5.2 when available; if no patch exists, isolate the device behind a firewall or disable the web interface to reduce attack surface.

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
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 checks

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

  1. Identify the device model
    Access the device web interface or check physical device labeling to confirm the exact model number is DVW-W02W2-E2
    Affected if The device model is Delta Electronics DVW-W02W2-E2
  2. Verify the web administration interface is enabled
    Attempt to access the device web interface on the default HTTP/HTTPS ports (typically 80/443 or custom ports configured during setup)
    Affected if The web administration interface is accessible and responds to HTTP/HTTPS requests
  3. Check the firmware version
    Log into the web interface and navigate to the System, Status, or About page to view the firmware version; alternatively, check the device documentation for CLI or SNMP methods to retrieve firmware version
    Affected if The installed firmware version is lower than 2.5.2 or the version cannot be determined
  4. Assess network exposure of the web interface
    Review network firewall rules, NAT configurations, and port forwards to determine if the web interface is exposed to untrusted networks or the public internet
    Affected if The web administration interface is reachable from untrusted networks or the internet without proper access controls

If the device is a DVW-W02W2-E2 with the web interface enabled and running firmware lower than version 2.5.2, or if the web interface is exposed to untrusted networks, the environment is affected by this vulnerability.

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

Upgrade DVW-W02W2-E2 firmware to a version beyond 2.5.2 when available; if no patch exists, isolate the device behind a firewall or disable the web interface to reduce attack surface.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

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dbcve dependency scanner

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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-2024-3871 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
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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