---
cve: "CVE-2026-21809"
severity: "LOW"
cvss: 3.9
epss: "0.1%"
vendor: "HCLSoftware"
kev: false
exploited: false
published: "2026-08-26 22:16:23"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T08:21:34+02:00"
---

# CVE-2026-21809

> 3.9 LOW

## Beschreibung

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-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Hoch | good |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-21809) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_