Medium severity · published May 27, 2026
CVE-2026-21785
HCL BigFix Remote Control Server WebUI is affected by a misconfigured Content Security Policy
4.0
CVSS
0.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BR
BigFix Remote Control Server · HCLSoftware
<= versions 10.1.0.0442 · source: vendor