CVE-2026-21806
Last modified
CVE-2026-21806 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. 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.
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| HCL Software | HCL BigFix Service Management | Version 27 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-21806?
How severe is CVE-2026-21806?
How do I fix CVE-2026-21806?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-21788HCL Connections is vulnerable to a cross-site scripting atta…5.4
- CVE-2026-21789HCL Connections contains a broken access control vulnerabili…4.6
- CVE-2026-2179A vulnerability was determined in PHPGurukul Hospital Manage…7.2
- CVE-2026-21790HCL Traveler is susceptible to a weak default HTTP header va…6.3
- CVE-2026-21791HCL Sametime for Android is impacted by a sensitive informat…3.3
- CVE-2026-2180A vulnerability was identified in Tenda RX3 16.03.13.11. Aff…8.8
- CVE-2026-21807HCL BigFix Quantum Risk Analyzer binary lacks several critic…3.9
- CVE-2026-21808HCL BigFix Quantum Risk Analyzer generates highly detailed l…4.1
- CVE-2026-21809HCL BigFix Quantum Risk Analyzer has a certain validation pr…3.9
- CVE-2026-2181A security flaw has been discovered in Tenda RX3 16.03.13.11…8.8
- CVE-2026-21810HCL BigFix Quantum Risk Analyzer is affected by a hardcoded …4.4
- CVE-2026-2182A weakness has been identified in UTT 进取 521G 3.1.1-190816. …7.3
Are you affected by CVE-2026-21806?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
