Vulnerability-Lookup

CVE-2026-21809 (GCVE-0-2026-21809)

Vulnerability from cvelistv5 – Published: 2026-08-26 21:05 – Updated: 2026-08-27 16:08

Title

HCL BigFix Quantum Risk Analyzer is affected by generating error messages with sensitive information

Summary

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.

Severity

3.9 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 16:08 UTC

CWE

CWE-209 - Generation of error message containing sensitive information

Assigner

HCL mitre root

References

1 reference

URL	Tags
https://support.hcl-software.com/csm?id=kb_articl…

Impacted products

1 product

Vendor	Product	Version	CPE status
HCLSoftware	BigFix Quantum Risk Analyzer	Affected: 2.0.1.47	guessed

Date Public

2026-08-26 21:00

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-21809

Vulnerability from fkie_nvd - Published: 2026-08-26 22:16 - Updated: 2026-08-28 16:06

Severity

3.9 (Low) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

Summary

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "BigFix Quantum Risk Analyzer",
          "vendor": "HCLSoftware",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.1.47"
            }
          ]
        }
      ],
      "source": "psirt@hcl.com"
    }
  ],
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  "lastModified": "2026-08-28T16:06:43.297",
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        },
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GHSA-5FRW-H466-X38V

Vulnerability from github – Published: 2026-08-27 00:30 – Updated: 2026-08-27 00:30

Details

Severity

3.9 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-21809"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-209"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T22:16:23Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-5frw-h466-x38v",
  "modified": "2026-08-27T00:30:28Z",
  "published": "2026-08-27T00:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21809"
    },
    {
      "type": "WEB",
      "url": "https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0133289"
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      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-21809 (GCVE-0-2026-21809)

FKIE_CVE-2026-21809

GHSA-5FRW-H466-X38V

Tags

Sightings

Nomenclature