Evlink Home FirmwareOperating system · Schneider Electric

CVE-2024-5313

MEDIUM · 6.5 CVSS v3.1 Published 2024-06-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
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
CWE-668: Exposure of the Resource Wrong Sphere vulnerability exists that exposes a SSH interface over the product network interface. This does not allow to directly exploit the product or make any unintended operation as the SSH interface access is protected by an authentication mechanism. Impacts are limited to port scanning and fingerprinting activities as well as attempts to perform a potential denial of service attack on the exposed SSH interface.

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

CWE-668 vulnerability exposes an SSH service on the product network interface instead of restricting it to a management network. While SSH access is protected by authentication, the exposure enables reconnaissance activities like port scanning and fingerprinting, plus potential denial-of-service attacks against the SSH service.

MitigationRestrict SSH daemon to bind only to management/internal network interfaces, or implement firewall rules to block SSH access from the product network segment.

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
Evlink Home FirmwareOperating system
Affected:= 2.0.3.8.2_128= 2.0.4.1.2_131

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
Low
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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 firmware version
    Access the device management interface or check system information to determine the installed firmware version. Compare against affected versions 2.0.3.8.2_128 and 2.0.4.1.2_131.
    Affected if Firmware version matches exactly 2.0.3.8.2_128 or 2.0.4.1.2_131
  2. Confirm SSH service is enabled
    Attempt to connect to port 22/tcp on the device from the product network segment using an SSH client or port scanner.
    Affected if SSH port 22 responds to connection attempts from the product network
  3. Determine SSH bind address configuration
    If management access is available, examine the SSH daemon configuration files or running processes to identify which network interface SSH is bound to (e.g., check for 'ListenAddress' in sshd_config or similar).
    Affected if SSH is bound to all interfaces (0.0.0.0) or to an IP address on the product network segment rather than only a management interface
  4. Verify network access restrictions
    From a host on the product network segment, attempt to reach port 22 on the device and confirm whether firewall rules or network segmentation block or permit this traffic.
    Affected if SSH traffic from product network segment reaches the device without being blocked by firewall or ACL rules

Device is affected if it runs firmware version 2.0.3.8.2_128 or 2.0.4.1.2_131 AND SSH port 22 is accessible from the product network rather than restricted to a management-only interface.

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

Restrict SSH daemon to bind only to management/internal network interfaces, or implement firewall rules to block SSH access from the product network segment.

Fix this in Evlink Home Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,390
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Scan for this in your stack

Free · runs locally
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-2024-5313 in production — separate from our analysis above.

No notes yet

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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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data