dbcve.org
Ak Em100 FirmwareOperating system · Danfoss

CVE-2023-25912

MEDIUM · 5.3 CVSS v3.1 Published 2023-06-11
Fix available
A fix is available. Upgrade to 2.2.0.12 or later.
See remediation →
62/100
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
The webreport generation feature in the Danfoss AK-EM100 allows an unauthorized actor to generate a web report that discloses sensitive information such as the internal IP address, usernames and internal device values.

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

The Danfoss AK-EM100 HVAC controller's webreport generation feature lacks proper authorization controls, allowing unauthenticated attackers to generate reports that expose sensitive system information including internal IP addresses, usernames, and internal device values.

MitigationImplement authentication and authorization checks on the webreport generation endpoint, or disable the feature if not required. Apply any vendor firmware updates. Network segmentation can limit exposure.

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
Ak Em100 FirmwareOperating system
Affected:< 2.2.0.12

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
None

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

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 Danfoss AK-EM100 devices on your network
    Scan your network for devices with the Danfoss AK-EM100 web interface. Look for HTTP responses containing 'AK-EM100' or 'Danfoss' in headers or title. Check port 80/443 for HVAC controller web interfaces.
    Affected if A device responding with Danfoss AK-EM100 web interface is found on your network
  2. Check the installed firmware version
    Log into the AK-EM100 web interface and navigate to the firmware version information page, typically found under System Info, About, or Settings. Note the exact firmware version number displayed.
    Affected if The firmware version is lower than 2.2.0.12 or cannot be verified to be at/above 2.2.0.12
  3. Verify webreport endpoint accessibility
    Attempt to access the webreport generation endpoint via HTTP GET request to paths such as /webreport, /webreport.exe, /report, or /cgi-bin/webreport on the AK-EM100 device. Check if the endpoint responds without requiring authentication.
    Affected if The webreport endpoint responds and exposes system information such as IP addresses, usernames, or device values without requiring login credentials

You are affected if a Danfoss AK-EM100 device with firmware below version 2.2.0.12 has its webreport feature accessible without authentication.

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
Upgrade available Upgrade to 2.2.0.12 or later
Fixed in 2.2.0.12
Interim mitigation

Implement authentication and authorization checks on the webreport generation endpoint, or disable the feature if not required. Apply any vendor firmware updates. Network segmentation can limit exposure.

Recommended fix Moderate confidence

Firmware version 2.2.0.12

  1. 1. Identify the current firmware version of the Danfoss AK-EM100 device by accessing the device web interface or checking the device settings
  2. 2. Navigate to the official Danfoss support website or contact Danfoss directly to obtain firmware version 2.2.0.12
  3. 3. Follow Danfoss's official firmware upgrade procedure, which typically involves uploading the firmware file through the device's web interface or using the Danfoss service tool
  4. 4. After upgrading, verify that the firmware version displays as 2.2.0.12 or higher
  5. 5. Test the webreport generation feature to confirm it now properly authenticates users before allowing report generation

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

Fix this in Ak Em100 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2023-25912 in production — separate from our analysis above.

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What this is

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