High severity · published Sep 2, 2025
CVE-2025-52543
Login to the application services using only the password hash
7.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
E3 Supervisory Control · Copeland LP
before 2.31F01 · source: vendor
ES
E3 Supervisory Controller Firmware · Copeland
before 2.31f01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-52543
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-52543
Mitigation
https://www.armis.com/research/frostbyte10/
More from E3 Supervisory Control
9.8
CVE-2025-52549
Predictable root linux password generation
9.8
CVE-2025-6519
Consistent predictable generation of the password for the default admin user "ONEDAY" to the application services
7.5
CVE-2025-52547
DoS to the application services
7.5
CVE-2025-52545
Privilege escalation in the application services
7.5
CVE-2025-52544
Arbitrary read file from the filesystem