What’s Vulnerable › Vulnerabilities

CVE-2026-21840: HCL BigFix Platform is affected by a user enumeration vulnerability

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-14 · updated 2026-10-24
• Weakness: CWE-208

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.

Affected products

• HCLSoftware HCL BigFix Platform: from 10.0.0 through 10.0.15, 11.0.0 - 11.0.5

References

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

Get alerted when CVE-2026-21840 or the next vulnerability affects your stack