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 observations suggest that most exploitation of CVE-2025-30406 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. CrowdSec data also reveals a clear uptick in attacks involving CVE-2025-30406 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.
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 |