High severity · published Sep 2, 2025
CVE-2025-52550
Firmware upgrade packages are unsigned
7.2
CVSS
0.2%
EPSS
No
On KEV
Description
E3 Site Supervisor Control (firmware version < 2.31F01) firmware upgrade packages are unsigned. An attacker can forge malicious firmware upgrade packages. An attacker with admin access to the application services can install a malicious firmware upgrade.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% 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-2025-52550
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-52550
Mitigation
https://www.armis.com/research/frostbyte10/
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