What is CVE-2026-21840?

CVE-2026-21840 is a low-severity vulnerability in Hclsoftware Hcl Bigfix Platform, classified under CWE-208. CVSS score: 3.1/10. Published 2026-07-14.

How severe is CVE-2026-21840?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Hclsoftware Hcl Bigfix Platform

CVE-2026-21840

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: 0.002 (15.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Hclsoftware Hcl Bigfix Platform — versions 10.0.0 - 10.0.15, 11.0.0 - 11.0.5

Weakness classification (CWE)

CWE-208

References

psirt@hcl.com

Frequently asked questions

What is CVE-2026-21840?: CVE-2026-21840 is a low-severity vulnerability in Hclsoftware Hcl Bigfix Platform, classified under CWE-208. CVSS score: 3.1/10. Published 2026-07-14.
How severe is CVE-2026-21840?: Low severity. CVSS v3 base score is 3.1 out of 10.