Vulnerability Intelligence Report
CentreStack < 17.5 Hardcoded Key Token Forgery RCE
CVE-2026-54363
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.
No Active Exploit Signals
CVSS Base Score
9.3
CRITICAL
EPSS Probability:0.39%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-321 ↗Use of Hard-coded Cryptographic Key
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Gladinet | CentreStack | 0 < 17.5 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.394%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2026-06-12T20:20:02 |
| Published | 2026-07-30T12:24:15 |
| Patch Date | 2026-07-28 |
| Last Updated | 2026-08-14T16:50:19 |
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