Hard-coded Cryptographic Keys in Gladinet CentreStack and Triofox

Historical catalog analysis: CISA added this entry on April 08, 2025. The entry reflects catalog information retrieved on August 31, 2026, not a snapshot archived on the inclusion date. Check current vendor guidance before acting.

What the vulnerability is

CVE-2025-30406 is a vulnerability involving the use of hard-coded cryptographic keys (CWE-321) within Gladinet CentreStack and Triofox. The flaw exists in how these applications manage the keys used to verify the integrity of ViewState data. Because these keys are static and embedded, an attacker can forge ViewState payloads. This forgery enables server-side deserialization, which can lead to remote code execution (RCE) on the affected system.

Exposure and applicability

This vulnerability affects organizations deploying Gladinet CentreStack or Triofox. The exposure path is primarily through the application’s handling of ViewState, a mechanism used in certain web frameworks to maintain state across requests. Any instance of these products that has not been mitigated according to vendor guidance is potentially susceptible to RCE via forged payloads.

Remediation priorities

Based on our analysis, vulnerability management teams should prioritize the following actions:

1. Asset Identification: Immediately identify all instances of Gladinet CentreStack and Triofox within the environment, including cloud-hosted and on-premises deployments.
2. Vendor Mitigation Application: Apply the specific mitigations provided in the vendor’s security advisories for both CentreStack and Triofox to address the hard-coded key issue.
3. Cloud Service Review: For organizations utilizing these as cloud services, follow applicable guidance (such as BOD 22-01 for federal entities) to ensure the service provider has implemented the necessary fixes.
4. Decommissioning Evaluation: If vendor mitigations are unavailable or cannot be applied to a specific legacy deployment, evaluate the immediate discontinuation of the product to eliminate the RCE risk.

How to validate remediation

Verification must go beyond confirming a version number. To ensure exposure is reduced, defenders should:
* Verify Patch Application: Confirm that the vendor-supplied updates specifically addressing CVE-2025-30406 have been successfully deployed and the service restarted.
* Configuration Audit: Where applicable, verify that any required configuration changes mandated by the vendor’s security advisory are active.

Because this vulnerability relies on a hard-coded secret, validation should focus on confirming that the application is no longer using the compromised static keys for ViewState verification.

Limits and open questions

While vendor mitigations address the known flaw, residual risk may remain if other undocumented hard-coded secrets exist within the same product family. It remains unknown whether this vulnerability has been utilized in ransomware campaigns. Furthermore, while CISA has added this to the Known Exploited Vulnerabilities (KEV) catalog, the specific timeline of initial discovery and the full extent of historical exploitation are not detailed in the source.

Source and editorial note

CVE-2025-30406: Gladinet CentreStack and Triofox Use of Hard-coded Cryptographic Key Vulnerability · Source date: April 08, 2025 · Retrieved August 31, 2026.

Material facts are tied to the cited primary source. Recommendations are independent defensive analysis unless attributed to the source. Confirm consequential decisions against current authoritative guidance.

Archive date: April 11, 2025. The displayed post date is assigned three days after the source date to organize this retrospective archive; it does not mean this site published the analysis then. First published by this site: October 18, 2026 at 00:42 UTC.

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