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CVE-2025-6519

Copeland E3 Supervisory Controller Firmware vulnerability

9.8 CRITICALEPSS 0.52%
  1. Published2 Sept 2025

Description

E3 Site Supervisor (firmware version < 2.31F01) has a default admin user "ONEDAY" with a daily generated password. An attacker can predictably generate the password for ONEDAY. The oneday user cannot be deleted or modified by any user.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Copeland E3 Supervisory Controller Firmware< 2.31f01

Remediation

Fixed in
Copeland E3 Supervisory Controller Firmware≥ 2.31f01

References

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Frequently asked

Is CVE-2025-6519 being actively exploited?

CVE-2025-6519 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.52%.

How severe is CVE-2025-6519?

CVE-2025-6519 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.52% probability of exploitation.

Which products are affected by CVE-2025-6519?

Affected products include Copeland E3 Supervisory Controller Firmware.

How do I fix CVE-2025-6519?

Upgrade affected software to a fixed version, for example Copeland E3 Supervisory Controller Firmware 2.31f01 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-6519 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.