What is CVE-2026-21830?

CVE-2026-21830 is a low-severity vulnerability in Hcl Software Bigfix Aex, classified under Improper Input Validation. CVSS score: 3.7/10. Published 2026-10-28.

How severe is CVE-2026-21830?

Low severity. CVSS v3 base score is 3.7 out of 10.

Improper input validation in Hcl Software Bigfix Aex

CVE-2026-21830

HCL BigFix AEX product is affected by a vulnerability in the aws-sdk package.. It may cause AWS API requests to be sent to unintended or non‐AWS endpoints.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-10-28 · last modified 2026-10-28.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Hcl Software Bigfix Aex — versions V13.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

support.hcl-software.com/csm

Frequently asked questions

What is CVE-2026-21830?: CVE-2026-21830 is a low-severity vulnerability in Hcl Software Bigfix Aex, classified under Improper Input Validation. CVSS score: 3.7/10. Published 2026-10-28.
How severe is CVE-2026-21830?: Low severity. CVSS v3 base score is 3.7 out of 10.