CVE-2026-56592Network attack vector

Unauthorized access via inadequate account lockouts

Published Sep 18, 2026 · Updated Sep 18, 2026

Improper authentication in HCL BigFix Service Management 27 allows remote attackers to obtain system access through login brute forcing. The login interface permits sustained password attempts because account-lockout validation does not adequately restrict repeated failures. No credentials or user interaction are required, and successful guessing exposes the privileges and data of the compromised account.

CVSS severity6.5
Medium
EPSS probability0.29%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in HCL BigFix Service Management 27 allows remote attackers to obtain system access through login brute forcing. The login interface permits sustained password attempts because account-lockout validation does not adequately restrict repeated failures. No credentials or user interaction are required, and successful guessing exposes the privileges and data of the compromised account.

The record

CVE
CVE-2026-56592
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
HCL Software
Product
HCL BigFix Service Management
Classifications
CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCL Software · HCL BigFix Service Managementversion=v27

Published CVSS scores

6.5HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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