CVE-2025-6519

Name: CVE-2025-6519
Creator: NVD / NIST
Published: 2025-09-02T12:15:38.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2025-6519 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.50%

39.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Copeland	E3 Supervisory Controller Firmware	< 2.31f01

References

https://www.armis.com/research/frostbyte10/Third Party Advisory

Timeline

Published: Sep 2, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-6519?

How severe is CVE-2025-6519?

CVE-2025-6519 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2025-6519?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-6519?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST