---
id: CVE-2026-56592
title: >-
  HCL BigFix Service Management is affected by an Improper Authentication
  validation vulnerability related to inadequate account lockouts, which could
  allow an unauthenticated attacker to execute sustained brute-force attacks
  against the l…
summary: >-
  HCL BigFix Service Management is affected by an Improper Authentication
  validation vulnerability related to inadequate account lockouts, which could
  allow an unauthenticated attacker to execute sustained brute-force attacks
  against the l…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'
cwe:
  - CWE-307
vendor: HCL Software
product: HCL BigFix Service Management
affected:
  - hcl_bigfix_service_management v27
published: '2026-09-18'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T13:44:57.517'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56592'
references:
  - url: >-
      https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133917
    label: psirt@hcl.com
tags:
  - nvd
  - cve.org
epss: 0.00254
epssPercentile: 0.17229
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-18T11:11:51.438537Z'
ingestedAt: '2026-09-18T08:38:04.113Z'
---

## Overview

HCL BigFix Service Management is affected by an Improper Authentication validation vulnerability related to inadequate account lockouts, which could allow an unauthenticated attacker to execute sustained brute-force attacks against the login interface, resulting in unauthorized system access.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.