Gladinet CentreStack and Triofox Use of Hard-coded Cryptographic Key Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-04-08
• EPSS: 94% chance of exploitation in the next 30 days (higher than 100% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official 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.

CISA: Gladinet CentreStack and Triofox contains a use of hard-coded cryptographic key vulnerability in the way that the application manages keys used for ViewState integrity verification. Successful exploitation allows an attacker to forge ViewState payloads for server-side deserialization, allowing for remote code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 29 Apr 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

• Patch on gladinetsupport.s3.us-east-1.amazonaws.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• gladinetsupport.s3.us-east-1.amazonaws.com/gladinet/securityadvisory-cve-2005.pdfMitigationPatchVendor Advisory
• www.centrestack.com/p/gce_latest_release.htmlRelease Notes
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource