Is CVE-2026-21785 actively exploited?

No active exploitation of CVE-2026-21785 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-21785 be exploited remotely?

Yes. CVE-2026-21785 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-21785?

CVE-2026-21785 has a CVSS score of 4.0 (MEDIUM).

HOME VULNERABILITIESCVE-2026-21785

MEDIUM

CVE-2026-21785

CWE-1021Published: May 27, 2026· Updated: Jun 1, 2026

4.0

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:7.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-21785 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.