CVE-2026-21806 — 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 sam…
Published: 2026-09-18 · CVSS: 3.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7