CVE-2026-21840

LOW

HCL BigFix Platform is affected by a user enumeration vulnerability

Title source: cna

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.

References (1)

Core 1

Core References

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

Scores

CVSS v3 3.1

EPSS 0.0015

EPSS Percentile 5.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-208

Status published

Products (1)

HCLSoftware/HCL BigFix Platform 10.0.0 - 10.0.15, 11.0.0 - 11.0.5

Published Jul 14, 2026

Tracked Since Jul 15, 2026