CVE-2026-21785
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Misconfigured CSP in HCL BigFix Remote Control Server WebUI

Publication date: 2026-05-27

Last updated on: 2026-06-01

Assigner: HCL Software

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.

CVSS Scores

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Meta Information

Published
2026-05-27
Last Modified
2026-06-01
Generated
2026-07-07
AI Q&A
2026-05-28
EPSS Evaluated
2026-07-05
NVD
CVE-2026-21785

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
hcl bigfix_remote_control_server to 10.1.0.0442 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-1021 The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with.

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Executive Summary

This vulnerability is caused by a misconfigured Content Security Policy (CSP) in the HCL BigFix Remote Control Server WebUI versions 10.1.0.0442 and earlier.

The CSP fails to define directives without fallbacks, which allows attackers to bypass the intended security restrictions.

As a result, attackers can load unauthorized resources that should have been blocked by the CSP.

Impact Analysis

This vulnerability can impact you by allowing attackers to bypass security controls intended to restrict resource loading.

Attackers may load unauthorized or malicious resources within the WebUI, potentially leading to information disclosure or integrity issues.

According to the CVSS score (4.0), the impact includes low confidentiality and integrity impacts, with no impact on availability.

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