Security readout for executives and security teams
Plain-English summary
CVE-2025-30406 is a critical CentreStack flaw that can let attackers run code on vulnerable servers if they know the hardcoded portal machineKey. CISA lists it as known exploited, and the CVE states exploitation occurred in March 2025.
Executive priority
Treat this as urgent. It is critical severity, remotely reachable, and listed by CISA as known exploited. Prioritize patching or vendor-directed mitigation for any exposed CentreStack portal.
Technical view
Gladinet CentreStack through 16.1.10296.56315 used a hardcoded machineKey in the portal, enabling unsafe server-side deserialization when the key is known. The vulnerability is fixed in 16.4.10315.56368. CVSS is 9.0 with network attack vector, no authentication, high complexity, and full confidentiality, integrity, and availability impact.
Likely exposure
Highest exposure is CentreStack portals running through 16.1.10296.56315, especially internet-facing deployments. The source bundle does not identify other Gladinet products as affected.
Exploitation context
Active exploitation is supported by CISA KEV and the CVE description. The CVE says exploitation was observed in March 2025. No exploit code, actor attribution, or indicators of compromise are included in the provided sources.
Researcher notes
The key technical issue is hardcoded machineKey use leading to deserialization-based RCE when the key is known. Evidence supports exploited-in-the-wild status, but the provided bundle lacks IOCs, exploit details, and complete affected-version metadata beyond the CVE description.
Mitigation direction
- Upgrade CentreStack to 16.4.10315.56368 or later.
- Review Gladinet's advisory and release notes for current remediation guidance.
- Manually delete the portal web.config machineKey if vendor guidance confirms this is appropriate.
- Prioritize externally reachable CentreStack portals for remediation.
- Restrict unnecessary internet exposure while remediation is pending.
Validation and detection
- Inventory all CentreStack deployments and record their exact versions.
- Confirm vulnerable systems are upgraded to 16.4.10315.56368 or later.
- Check portal web.config for hardcoded machineKey presence.
- Review vendor advisory for any published compromise indicators.
- Assess logs from March 2025 onward for unexplained server-side activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-321: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-30406 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H2.26Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.centrestack.com/p/gce_latest_release.htmlCVE reference
- https://gladinetsupport.s3.us-east-1.amazonaws.com/gladinet/securityadvisory-cve-2005.pdfCVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-30406CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Hard-coded Cryptographic Key
Use of Hard-coded Cryptographic Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.