CVE-2026-21840 PUBLISHED

HCL BigFix Platform is affected by a user enumeration vulnerability

Assigner: HCL
Reserved: 05.01.2026 Published: 14.07.2026 Updated: 15.07.2026

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

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 3.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	HCLSoftware
Product	HCL BigFix Platform
Versions	Default: unaffected Version 10.0.0 - 10.0.15, 11.0.0 - 11.0.5 is affected

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132093

Problem Types

CWE-208 Observable timing discrepancy CWE