OCTOBER 13, 2026
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Case File

CVE-2026-21806

LOW · CVSS 3.1 EPSS 0.15% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-18 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

HCL BigFix Service Management is vulnerable due to an Administrative Session Concurrency issue, allowing multiple simultaneous authenticated sessions for the same admin account. This flaw could enable an unauthorized attacker to predict or hijack valid session identifiers, potentially compromising administrative sessions and granting full privileged access. Organizations using this application should prioritize remediation to mitigate the risk of unauthorized access and privilege escalation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-21806
Severity
LOW
CVSS
3.1
EPSS
0.15%

Original NVD Description

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.