Vulnerability in Copeland E3_supervisory_controller_firmware
CVE-2025-6519
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.
EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: 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
- Copeland Site_supervisor_bx_860-1240
- Copeland Site_supervisor_bxe_860-1245
- Copeland Site_supervisor_cx_860-1260
- Copeland Site_supervisor_cxe_860-1265
- Copeland Site_supervisor_rx_860-1220
- Copeland Site_supervisor_rxe_860-1225
- Copeland Site_supervisor_sf_860-1200
- Copeland Lp E3 Supervisory Control — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- dd59f033-460c-4b88-a075-d4d3fedb6191 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-6519?
- CVE-2025-6519 is a critical-severity vulnerability in Copeland E3_supervisory_controller_firmware, classified under Insufficiently Protected Credentials. CVSS score: 9.8/10. Published 2025-09-02.
- How severe is CVE-2025-6519?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-6519 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.