CVE-2025-30406
Gladinet CentreStack and Triofox Use of Hard-coded Cryptographic Key Vulnerability
Gladinet CentreStack
Gladinet CentreStack through 16.1.10296.56315 (fixed in 16.4.10315.56368) has a deserialization vulnerability due to the CentreStack portal's hardcoded machineKey use, as exploited in the wild in March 2025. This enables threat actors (who know the machineKey) to serialize a payload for server-side deserialization to achieve remote code execution. NOTE: a CentreStack admin can manually delete the machineKey defined in portal\web.config.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 8 April 2025. US federal agencies were required to remediate it by 29 April 2025.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 94.3%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Frequently asked questions
Is CVE-2025-30406 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2025-30406.
What does CVE-2025-30406 affect?
CVE-2025-30406 affects Gladinet CentreStack. Gladinet CentreStack through 16.1.10296.56315 (fixed in 16.4.10315.56368) has a deserialization vulnerability due to the CentreStack portal's hardcoded machineKey use, as exploited in the wild in March 2025. This enables threat actors (who know the machineKey) to serialize a payload for server-side deserialization to achieve remote code execution. NOTE: a CentreStack admin can manually delete the machineKey defined in portal\web.config.
How severe is CVE-2025-30406?
CVE-2025-30406 is rated CRITICAL with a CVSS base score of 9. EPSS puts the probability of exploitation in the next 30 days at 94.3%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 29 April 2025.
How should organisations respond to CVE-2025-30406?
Apply the vendor patch for Gladinet CentreStack as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.