CVE-2026-21840 — LOW (3.1) — White Hats Nepal

Vulnerability 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.

CVSS Score

3.1

LOW

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-208

References

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

FAQ

What is CVE-2026-21840?

CVE-2026-21840 is a vulnerability with a CVSS score of 3.1 (LOW). 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 enumeratio...

How severe is CVE-2026-21840?

CVE-2026-21840 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21840?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.