Is CVE-2026-21765 actively exploited?

No active exploitation of CVE-2026-21765 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-21765 be exploited remotely?

No. CVE-2026-21765 requires local access to exploit.

What is the CVSS score of CVE-2026-21765?

CVE-2026-21765 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-21765

HIGH

CVE-2026-21765

CWE-276Published: April 2, 2026· Updated: Apr 3, 2026

8.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.1th

Official Description

HCL BigFix Platform is affected by insecure permissions on private cryptographic keys. The private cryptographic keys located on a Windows host machine might be subject to overly permissive file system permissions.

NVD Source

Technical Analysis

CVE-2026-21765 requires local access, meaning attackers must already have a foothold on the target system.

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

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

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.