Vulnerability · Published Jul 30, 2026 · Assigned by VulnCheck

CVE-2026-54363CentreStack < 17.5 Hardcoded Key Token Forgery RCE

Critical 9.1

In plain English

A critical-severity security flaw in CentreStack from Gladinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)0.7%top 47.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Gladinet	CentreStack	0 – before 17.5

Weakness: CWE-321 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Product Homepage product
https://www.vulncheck.com/advisories/centrestack-hardcoded-key-token-forgery-rce third-party-advisory