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CVE-2026-56599— 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 存在不安全的 Cookie 属性配置漏洞，该漏洞可能允许攻击者利用缺失的安全属性（如 SameSite、HttpOnly、Secure 以及受限的 Path），从而实施跨站请求伪造（CSRF）、通过跨站脚本攻击（XSS）进行会话劫持，以及未授权访问。

CVSS 2.2 · Low

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-56599

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 Insecure Cookie Attribute Configuration vulnerability, which could allow an attacker to exploit missing security attributes such as SameSite, HttpOnly, Secure, and restrictive Paths, enabling Cross-Site Request Forgery (CSRF), session hijacking via Cross-Site Scripting (XSS), and unauthorized access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
HTTPS会话中未设置’Secure’属性的敏感Cookie
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCL Software HCL BigFix Service Management Version 27 -

II. Public POCs for CVE-2026-56599

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III. Intelligence Information for CVE-2026-56599

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Other References for CVE-2026-56599 (1)

Same Patch Batch · HCL Software · 2026-10-01 · 14 CVEs total

CVE-2026-66246 8.8 HIGH HCL iControl is affected by multiple security vulnerabilities
CVE-2026-67105 7.4 HIGH HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-56589 7.2 HIGH HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67171 5.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67106 5.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-67104 5.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2025-31980 4.3 MEDIUM HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-66247 4.3 MEDIUM iControl不安全CORS策略致敏感数据泄露漏洞
CVE-2026-21833 3.7 LOW HCL AION is susceptible to a Missing "Content-Security-Policy" header Vulnerability (CVE-2
CVE-2026-67172 3.7 LOW HCL BigFix Service Management is affected by multiple security vulnerabilities.
CVE-2026-66253 3.1 LOW HCL iControl is affected by a Session Timeout vulnerability
CVE-2026-66249 3.1 LOW HCL iControl is affected by a Missing Secure Attribute vulnerability
CVE-2026-66248 3.1 LOW HCL iControl is affected by an Improper Error Handling vulnerability

IV. Related Vulnerabilities

Same product: HCL BigFix Service Management
Same vendor: HCL Software
Same weakness: CWE-614

V. Comments for CVE-2026-56599

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