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TI-2026-39255 Aliases CVE-2026-54363GHSA-vmg2-rwj3-8rq2

CentreStack < 17.5 Hardcoded Key Token Forgery RCE

Priority MEDIUM 47CWE-321Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.

Summary

CentreStack before 17.5 contains a hardcoded cryptographic key vulnerability that allows unauthenticated attackers to forge arbitrary encrypted tokens by exploiting a static SysNumber value used as entropy for AccessTicket.Encrypt() and AccessTicket.Decrypt() across all installations. Attackers can use the hardcoded key to craft valid x-glad-auth headers and call privileged API endpoints such as acquiretenantbackuptoken to obtain a domain administrator IdentityTicket, enabling a complete unauthenticated remote code execution chain.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00686 52nd percentileScored 2026-11-07
Fix Fixed CentreStack (Gladinet): 17.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GladinetCentreStackbefore 17.517.5Patch availableCNA
  • CentreStack VendorGladinet Affected before 17.5 Fixed in 17.5 Patch available CNA

Remediation

  • Fix · CNA CentreStack (Gladinet) Fixed in 17.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54363
  2. 2026-10-03 Alias added: GHSA-vmg2-rwj3-8rq2

References

Other 1

  • TI-2025-21708 Hard-coded credentials in Gladinet CentreStack KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-11451 Improper access control in TrioFox KEVCVSS 3.1CRITICAL 9.1
  • TI-2025-13351 Gladinet CentreStack and TrioFox Hard Coded AES Keys KEVCVSS 4.0HIGH 7.1
  • TI-2025-10418 Gladinet CentreStack and TrioFox Local File Inclusion Flaw KEVCVSS 3.1HIGH 7.5
  • TI-2026-07358 Gladinet Triofox Missing Authentication for Critical Functions CVSS 3.1CRITICAL 9.8
  • TI-2026-07357 Gladinet Triofox Stack-based Buffer Overflow in WOSDeviceDropFolder.dll CVSS 3.1CRITICAL 9.8
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences