What is CVE-2026-21765?

CVE-2026-21765 is a high-severity vulnerability in Hclsoftware Bigfix Platform, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 8.8/10. Published 2026-04-01.

How severe is CVE-2026-21765?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Hclsoftware Bigfix Platform

CVE-2026-21765

HCL BigFix Platform is affected by insecure permissions on private cryptographic keys. The private cryptographic keys located on a Windows host machine might be subject to overly permissive file system permissions.

EPSS: 0.000 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Hclsoftware Bigfix Platform — versions 11.0.0 - 11.0.5

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource
CWE-276 — Incorrect Default Permissions

References

support.hcl-software.com/csm

Frequently asked questions

What is CVE-2026-21765?: CVE-2026-21765 is a high-severity vulnerability in Hclsoftware Bigfix Platform, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 8.8/10. Published 2026-04-01.
How severe is CVE-2026-21765?: High severity. CVSS v3 base score is 8.8 out of 10.