CVE-2026-21840
Last modified
CVE-2026-21840 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. HCL BigFix Platform is affected by a user enumeration vulnerability which might allow an attacker, through careful system control and response time monitoring, to perform some level of user enumeration for the BigFix service.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.
Description
HCL BigFix Platform is affected by a user enumeration vulnerability which might allow an attacker, through careful system control and response time monitoring, to perform some level of user enumeration for the BigFix service.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| HCLSoftware | HCL BigFix Platform | 10.0.0 - 10.0.15, 11.0.0 - 11.0.5 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-21840?
How severe is CVE-2026-21840?
How do I fix CVE-2026-21840?
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-2026-21825HCL Digital Experience Compose is affected by a reflected cr…6.1
- CVE-2026-21826HCL Digital Experience and HCL Digital Experience Compose co…6.1
- CVE-2026-2183A security vulnerability has been detected in Great Develope…9.8
- CVE-2026-21836The HCL DominoIQ RAG feature is affected by a Broken Access …6.5
- CVE-2026-21837HCL Digital Experience is affected by an OS command injectio…8.8
- CVE-2026-2184A vulnerability was detected in Great Developers Certificate…9.8
- CVE-2026-2185A flaw has been found in Tenda RX3 16.03.13.11. This issue a…8.8
- CVE-2026-21851MONAI (Medical Open Network for AI) is an AI toolkit for hea…5.3
- CVE-2026-21852Claude Code is an agentic coding tool. Prior to version 2.0.…7.5
- CVE-2026-21853AFFiNE is an open-source, all-in-one workspace and an operat…8.8
- CVE-2026-21854The Tarkov Data Manager is a tool to manage the Tarkov item …9.8
- CVE-2026-21855The Tarkov Data Manager is a tool to manage the Tarkov item …6.1
Are you affected by CVE-2026-21840?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST