CVE-2025-6519
CRITICALCVSS 9.8/10EPSS 0.50%
Last modified
CVE-2025-6519 is a critical-severity vulnerability rated 9.8/10 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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Copeland | E3 Supervisory Controller Firmware | < 2.31f01 |
References
- https://www.armis.com/research/frostbyte10/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is 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.
How severe is CVE-2025-6519?
CVE-2025-6519 has a CVSS score of 9.8/10 (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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2025-6519?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST