CVE-2026-54363
CentreStack < 17.5 Hardcoded Key Token Forgery RCE
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jul 30, 2026
- Updated
- Aug 14, 2026
- Reserved
- Jun 12, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-321 Use of Hard-coded Cryptographic Key
Affected Products
| Product | Versions |
|---|---|
CentreStackGladinet |
|
References
- Product Homepageproduct
- https://www.vulncheck.com/advisories/centrestack-hardcoded-key-token-forgery-rcethird-party-advisory
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