CVE-2026-56590HCL BigFix Service Management is affected by multiple security vulnerabilities.

HCL BigFix Service Management is affected by an Unrestricted File Upload vulnerability due to improper file validation controls, which could allow an unauthenticated attacker to upload and execute malicious payloads, resulting in a complete server compromise.

9.8 CRITICALEPSS 0.19%Not in KEVNVD: Analyzed

Last updated: 2026-10-14 17:56 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Sep 18, 2026
Assigner: HCL

Affected

HCL BigFix Service Management (HCL Software)

Versions: v27

Exploitation

Public exploit: None listed
CISA KEV: Not listed
KEV due date: —
SSVC: Exploitation none · Automatable no · Impact total

EPSS · FIRST, scored Nov 7

0.19%chance of exploitation in 30 days

Higher than 9.00% of CVEs

CVSS 3.1 · NVD

9.8Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.1 · HCL (CNA)

6.4Medium

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N

Attack vector: Network
Attack complexity: High
Privileges required: Low
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: None

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.4	MEDIUM	3.1HCL (CNA)	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N

Details

CVE ID: CVE-2026-56590
Status: Analyzed
Assigner (CNA): HCL
Published: Sep 18, 2026
Last modified: 2026-10-14 17:56 UTC
Weaknesses: CWE-434 · Unrestricted Upload of File with Dangerous Type

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 08:54 UTC.