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

Quick assessment

Affected
HCLSoftware BigFix Quantum Risk Analyzer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HCL BigFix Quantum Risk Analyzer是印度HCL公司的一款风险量化分析工具。 HCL BigFix Quantum Risk Analyzer 2.0.1.47版本存在信息泄露漏洞，该漏洞源于验证过程在遇到畸形输入时提供过于详细的错误消息，可能导致攻击者进行更有效的侦察并微调自动化模糊测试工具以生成有效输入。

CVSS 3.9 · Low EPSS 0.09% · P0

Possible ATT&CK Techniques 1 AI

T1595 · Active Scanning

Affected Version Matrix 1

VendorProduct Version RangeStatus
HCLSoftware BigFix Quantum Risk Analyzer 2.0.1.47 affected
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I. Basic Information for CVE-2026-21809

Vulnerability Information
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Vulnerability Title
HCL BigFix Quantum Risk Analyzer is affected by generating error messages with sensitive information
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
HCL BigFix Quantum Risk Analyzer 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HCL BigFix Quantum Risk Analyzer是印度HCL公司的一款风险量化分析工具。 HCL BigFix Quantum Risk Analyzer 2.0.1.47版本存在信息泄露漏洞，该漏洞源于验证过程在遇到畸形输入时提供过于详细的错误消息，可能导致攻击者进行更有效的侦察并微调自动化模糊测试工具以生成有效输入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCLSoftware BigFix Quantum Risk Analyzer 2.0.1.47 -

II. Public POCs for CVE-2026-21809

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III. Intelligence Information for CVE-2026-21809

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Vendor Advisories for CVE-2026-21809 (1)

Same Patch Batch · HCLSoftware · 2026-08-26 · 6 CVEs total

CVE-2026-21810 4.4 MEDIUM HCL BigFix Quantum Risk Analyzer is affected by a hardcoded external resource reference an
CVE-2026-21808 4.1 MEDIUM HCL BigFix Quantum Risk Analyzer is affected by logging sensitive information
CVE-2026-21807 3.9 LOW HCL BigFix Quantum Risk Analyzer is affected by a stack-based buffer overflow
CVE-2025-62341 3.7 LOW HCL Connections is vulnerable to server-side request forgery (SSRF)
CVE-2026-56547 3.5 LOW An input reflection vulnerability affects HCL Traveler

IV. Related Vulnerabilities

Same product: BigFix Quantum Risk Analyzer
Same vendor: HCLSoftware
Same weakness: CWE-209

V. Comments for CVE-2026-21809

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