CentreStack - RCE (CVE-2025-30406)
Description
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.
psychologyCrowdSec Analysis
CVE-2025-30406 is a serious vulnerability impacting Gladinet CentreStack, caused by unsafe deserialization resulting from the use of a hardcoded key within the portal component. Successful exploitation can allow remote attackers to achieve unauthenticated remote code execution.
CrowdSec has been tracking this vulnerability and its exploits since 11th of June 2025.
CrowdSec network data shows that most actors exploiting CVE-2025-30406 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2025-30406 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2025-30406 is currently experiencing high visibility and active exploitation across the internet.
Observed exploitation typically involves requests to URLs containing /portal/loginpage.aspx.
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| Event | Date |
|---|---|
| CVE Published | 2025-04-03 |
| CISA KEV | 2025-04-08 |
| CISA Remediation Deadline | 2025-04-29 |
| Rule Released | 2025-06-11 |
| CrowdSec First Seen | 2025-06-16 |