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    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.

    Published:Jul 30, 2026
    Last Modified:Aug 14, 2026
    EPS:Jul 30, 2026
    EPSS Score:0.00394
    CVSS Score:9.1

    Affected Products

    Vendor
    Gladinet
    Product
    Centrestack

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-54366 (CVSS 8.7) — CentreStack before 17.4 contains an XML external entity (XXE) injection vulnerability that allows unauthentica…
    CVE-2026-54365 (CVSS 8.7) — CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allo…
    CVE-2026-54364 (CVSS 6.9) — CentreStack before 17.4 contains a session variable injection vulnerability that allows unauthenticated attack…
    CVE-2025-14611 (CVSS 7.1) — Gladinet CentreStack and Triofox prior to version 16.12.10420.56791 used hardcoded values for their implementa…
    CVE-2025-11371 (CVSS 7.5) — In the default installation and configuration of Gladinet CentreStack and TrioFox, there is an unauthenticated…
    CVE-2025-30406 (CVSS 9) — Gladinet CentreStack through 16.1.10296.56315 (fixed in 16.4.10315.56368) has a deserialization vulnerability …
    CVE-2024-37782 (CVSS 9.8) — An LDAP injection vulnerability in the login page of Gladinet CentreStack v13.12.9934.54690 allows attackers t…
    CVE-2023-26830 (CVSS 7.2) — An unrestricted file upload vulnerability in the administrative portal branding component of Gladinet CentreSt…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High