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

Quick assessment

Affected
HCL Software HCL BigFix Service Management
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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.

CVSS 6.4 · Medium
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I. Basic Information for CVE-2026-56590

Vulnerability Information

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Vulnerability Title
HCL BigFix Service Management is affected by multiple security vulnerabilities.
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCL Software HCL BigFix Service Management v27 -

II. Public POCs for CVE-2026-56590

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III. Intelligence Information for CVE-2026-56590

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Other References for CVE-2026-56590 (1)

Same Patch Batch · HCL Software · 2026-09-18 · 10 CVEs total

CVE-2026-67100 9.8 CRITICAL HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67101 9.3 CRITICAL HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67102 8.1 HIGH HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67103 7.6 HIGH HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-56592 6.5 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-21822 6.3 MEDIUM A path traversal vulnerability has been identified in HCL AppScan 360° (CVE-2026-21822).
CVE-2026-21848 5.0 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-56595 3.1 LOW HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-56597 3.1 LOW HCL BigFix Service Management is affected by multiple security vulnerabilities.

IV. Related Vulnerabilities

Same product: HCL BigFix Service Management
Same vendor: HCL Software
Same weakness: CWE-434

V. Comments for CVE-2026-56590

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