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Published vulnerabilities with severity, known exploitation and official sources.

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CVE-2026-21806 Critical · 9.8 CWE-557 Sep 18, 2026

HCL BigFix Service Management was affected with Admin Session Concurrency vulnerability (CVE-2026-21806)

HCL BigFix Service Management is affected by an Administrative Session Concurrency vulnerability. The application allows multiple simultaneous authenticated sessions for the same administrative account, which could enable an unauthorized attacker to predict or hijack valid session identifiers. Successful exploitation allows an attacker to compromise affected administrative sessions and execute actions with full privileged user permissions.

CVE-2025-62343 Low · 3.1 CWE-557 Aug 27, 2026

HCL IntelliOps Event Management is affected by multiple security vulnerabilities.

HCL IntelliOps Event Management (IEM) is affected by an Admin Session Concurrency Vulnerability. it may allows user sessions to remain active after logout or session deletion.

CVE-2025-55275 High · 8.1 CWE-557 Mar 26, 2026

HCL Aftermarket DPC is affected by Admin Session Concurrency vulnerability

HCL Aftermarket DPC is affected by Admin Session Concurrency vulnerability using which an attacker can exploit concurrent sessions to hijack or impersonate an admin user.