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CVE-2026-21785— HCL BigFix Remote Control Server WebUI is affected by a misconfigured Content Security Policy

Quick assessment

Affected
HCLSoftware BigFix Remote Control Server
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 Remote Control Server WebUI是印度HCL公司的一个用于远程管理和控制的Web用户界面。 HCL BigFix Remote Control Server WebUI 10.1.0.0442及之前版本存在安全漏洞，该漏洞源于内容安全策略配置错误，未能定义无回退的指令，可能导致攻击者绕过安全限制并加载未授权资源。

CVSS 4.0 · Medium EPSS 0.15% · P3

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
HCLSoftware BigFix Remote Control Server <= versions 10.1.0.0442 affected
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I. Basic Information for CVE-2026-21785

Vulnerability Information
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Vulnerability Title
HCL BigFix Remote Control Server WebUI is affected by a misconfigured Content Security Policy
Source: CVE Program / CVE List V5
Vulnerability Description
A misconfigured Content Security Policy (CSP) in HCL BigFix Remote Control Server WebUI (versions 10.1.0.0442 and earlier) fails to define directives without fallbacks, allowing attackers to bypass intended security restrictions and load unauthorized resources.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不当限制渲染UI层或帧
Source: CVE Program / CVE List V5
Vulnerability Title
HCL BigFix Remote Control Server WebUI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HCL BigFix Remote Control Server WebUI是印度HCL公司的一个用于远程管理和控制的Web用户界面。 HCL BigFix Remote Control Server WebUI 10.1.0.0442及之前版本存在安全漏洞，该漏洞源于内容安全策略配置错误，未能定义无回退的指令，可能导致攻击者绕过安全限制并加载未授权资源。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCLSoftware BigFix Remote Control Server <= versions 10.1.0.0442 -

II. Public POCs for CVE-2026-21785

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III. Intelligence Information for CVE-2026-21785

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Vendor Advisories for CVE-2026-21785 (1)

IV. Related Vulnerabilities

Same vendor: HCLSoftware
Same weakness: CWE-1021

V. Comments for CVE-2026-21785

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