dbcve.org
Xcomfort Ethernet Communication InterfaceApplication · Eaton

CVE-2025-59886

HIGH · 8.8 CVSS v3.1 Published 2025-12-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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
Improper input validation at one of the endpoints of Eaton xComfort ECI's web interface, could lead into an attacker with network access to the device executing privileged user commands. As cybersecurity standards continue to evolve and to meet our requirements today, Eaton has decided to discontinue the product. Upon retirement or end of support, there will be no new security updates, non-security updates, or paid assisted support options, or online technical content updates.

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

Improper input validation vulnerability in the Eaton xComfort ECI device web interface allows an attacker with network access to execute privileged commands. The vulnerability has a CVSS 8.8 rating indicating it is exploitable from the network with low complexity, potentially allowing full compromise of the device with privileged access.

MitigationAs the product is discontinued with no security updates available, the only viable mitigation is network isolation: place the device behind a firewall with strict access controls, or if feasible, replace the discontinued device with a supported alternative.

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
Xcomfort Ethernet Communication InterfaceApplication
Affected:all versions

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
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 checks

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

  1. Identify the Eaton Xcomfort ECI device on the network
    Scan the local network for devices responding to HTTP/HTTPS on common web ports (80, 443, 8080) and check for responses containing 'Eaton', 'xComfort', or 'ECI' in the server header or web page title. Alternatively, check network device inventories or DHCP logs for devices with MAC OUI assigned to Eaton.
    Affected if The device is found and is accessible on the network.
  2. Verify web interface network exposure
    From an external or non-management network segment, attempt to reach the device's IP address on ports 80, 443, or 8080 using a web browser or curl command. Document whether the login page or web interface loads.
    Affected if The web interface is reachable from network segments outside the intended management VLAN.
  3. Check for firewall or access control rules protecting the device
    Review firewall configurations, router ACLs, or network segmentation rules to determine if inbound access to the device's IP and web ports is explicitly blocked or restricted to specific management IPs/subnets.
    Affected if No firewall or ACL rules exist to restrict access to the device's web interface.
  4. Confirm device is the discontinued Xcomfort Ethernet Communication Interface
    Access the device's web interface and check the firmware version, model name, or system information page. Look for references to 'Xcomfort', 'ECI', or 'Ethernet Communication Interface' to confirm the exact model.
    Affected if The device is confirmed to be an Eaton Xcomfort ECI unit.

A user is affected if the Eaton Xcomfort ECI device is present on the network with its web interface accessible from any network segment beyond strict management-only access, since all versions of this discontinued device contain the 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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

As the product is discontinued with no security updates available, the only viable mitigation is network isolation: place the device behind a firewall with strict access controls, or if feasible, replace the discontinued device with a supported alternative.

Recommended fix High confidence
  1. Remove the affected Xcomfort Ethernet Communication Interface from the network immediately.
  2. Replace the discontinued device with a supported alternative product from Eaton or another vendor.
  3. If the device must remain in temporary use, isolate it in a dedicated network segment with strict firewall rules limiting access to trusted systems only.
  4. Implement network monitoring to detect any unauthorized access attempts to the device.
  5. Consider physical removal and proper disposal of the discontinued device.
Caveat Product is discontinued with no security updates available; replacement with a supported alternative is required.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Xcomfort Ethernet Communication Interface Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
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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-2025-59886 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data