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E3 Supervisory Controller FirmwareOperating system · Copeland

CVE-2025-52549

CRITICAL · 9.8 CVSS v3.1 Published 2025-09-02
Fix available
A fix is available. Upgrade to 2.31f01 or later.
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
E3 Site Supervisor Control (firmware version < 2.31F01) generates the root linux password on each boot. An attacker can generate the root linux password for a vulnerable device based on known or easy to fetch parameters.

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 E3 Site Supervisor Control device (firmware < 2.31F01) uses a deterministic algorithm to generate the root Linux password on each boot. An attacker can recover this password by obtaining easily accessible parameters (such as device identifiers, timestamps, or seed values) and applying the same algorithm, enabling full root access to the device.

MitigationUpgrade E3 Site Supervisor Control firmware to version 2.31F01 or later. Until patched, isolate the device from untrusted networks and monitor for indicators of compromise.

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
E3 Supervisory Controller FirmwareOperating system
Affected:< 2.31f01

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. Check the installed firmware version
    Access the E3 Site Supervisor web interface or console and navigate to the firmware information section, typically found under System Info, About, or Settings. Note the exact firmware version string displayed.
    Affected if The firmware version is any version lower than 2.31f01 or 2.31F01 (such as 2.30, 2.29, etc.)
  2. Identify if the root account uses default or predictable credentials
    Attempt to access the device console or SSH service using the root account. Note whether the password follows a predictable pattern or appears to be generated from device-specific parameters.
    Affected if Root access is possible using credentials derived from device identifiers, timestamps, or seed values rather than a unique randomly-generated password.
  3. Review network exposure of the management interface
    Determine if the E3 Site Supervisor web interface or console is accessible from untrusted networks. Check network firewall rules and device IP configuration.
    Affected if The device management interface is directly exposed to the internet or untrusted LAN segments where attackers could harvest device identifiers or timestamps.
  4. Check for unauthorized access indicators
    Review system logs, authentication logs, or any available audit trails on the device for successful root login events, especially from unexpected IP addresses or at unusual times.
    Affected if There are log entries showing root access that was not initiated by legitimate administrators.

You are affected if your E3 Site Supervisor runs firmware versions prior to 2.31F01, especially if the device management interface is accessible from untrusted networks.

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 2.31f01 or later
Fixed in 2.31f01
Interim mitigation

Upgrade E3 Site Supervisor Control firmware to version 2.31F01 or later. Until patched, isolate the device from untrusted networks and monitor for indicators of compromise.

Recommended fix High confidence

E3 Supervisory Controller Firmware version 2.31F01 or later

  1. 1. Obtain the E3 Supervisory Controller firmware version 2.31F01 or later from the device manufacturer (Microscan/Metrologic Instruments)
  2. 2. Review manufacturer release notes for any special upgrade instructions or prerequisites
  3. 3. Backup current device configuration and settings before proceeding with firmware update
  4. 4. Connect to the E3 Site Supervisor device via a secure, trusted network connection
  5. 5. Upload and install firmware version 2.31F01 or later using the manufacturer's recommended procedure
  6. 6. Verify the firmware upgrade was successful by checking the firmware version in the device interface
  7. 7. Confirm the root password generation mechanism has been changed by reviewing device security settings
  8. 8. Change any default or shared credentials that may have been used during the update process

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

Fix this in E3 Supervisory Controller Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,420
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,872.

Scan for this in your stack

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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-2025-52549 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