CVE-2026-21809 — LOW (3.9) — White Hats Nepal

Vulnerability Description

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.

CVSS Score

3.9

LOW

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-209

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133289

FAQ

What is CVE-2026-21809?

CVE-2026-21809 is a vulnerability with a CVSS score of 3.9 (LOW). 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 efficie...

How severe is CVE-2026-21809?

CVE-2026-21809 has been rated LOW with a CVSS base score of 3.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21809?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.