CVE-2026-21809 LOW

CVE-2026-21809: HCL BigFix Quantum Risk Analyzer is affected by generating error messages with sensitive information

Vendor Hclsoftware
Product BigFix Quantum Risk Analyzer
Weakness CWE-209 · Error message info leak
Published August 26, 2026
Last update August 27, 2026

CVSS base score

3.9/10
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.

Key dates

02Disclosure timeline

August 26, 2026 CVE published
August 27, 2026 Record updated