E3 Supervisory Control: Use of Password Hash Instead of Password for Authentication
CVE-2025-52543 is a high-severity use of password hash instead of password for authentication vulnerability in E3 Supervisory Control from Copeland LP, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 2.31F01 as the first without the flaw, so updating E3 Supervisory Control to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.31% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update E3 Supervisory Control to 2.31F01 or a later version.
- Update E3 Supervisory Controller Firmware to 2.31f01 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Copeland LP | E3 Supervisory Control | before 2.31F01 | 2.31F01 |
| Copeland | E3 Supervisory Controller Firmware | before 2.31f01 | 2.31f01 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 5.3 | Medium | CNA |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
E3 Site Supervisor Control (firmware version < 2.31F01) application services (MGW and RCI) uses client side hashing for authentication. An attacker can authenticate by obtaining only the password hash.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Use of Password Hash Instead of Password for Authentication
The product includes a client that computes a hash of a password and sends the hash to another component, which compares the supplied hash to the hash obtained from a data store of password hashes.
More Use of Password Hash Instead of Password for Authentication vulnerabilities (CWE-836)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- armis.com/research/frostbyte10/Mitigation, Third Party Advisory
Other vulnerabilities in E3 Supervisory Control
- 9.8 Critical severity
- 7.2 High severity
- 9.8 Critical severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
Recent Use of Password Hash Instead of Password for Authentication vulnerabilities
- 7.5 High severity
- 8.8 High severity
- 9.8 Critical severity
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