EUVD-2026-66805
GHSA-fh44-2qvm-x6ww
Severity by source
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
Local-only access, high privileges, and high complexity required; limited CIA impact confined to the vulnerable process scope.
Primary rating from Vendor (hcl).
CVSS VectorVendor: hcl
Lifecycle Timeline
1DescriptionCVE.org
HCL BigFix Quantum Risk Analyzer binary lacks several critical, industry-standard hardening protections that could allow an attacker to cause a stack-based buffer overflow.
AnalysisAI
HCL BigFix Quantum Risk Analyzer's binary executable lacks multiple industry-standard binary hardening protections, leaving it susceptible to a stack-based buffer overflow (CWE-121). The vulnerability requires local access with high privileges and high attack complexity, yielding a CVSS score of 3.9 (Low). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to have high-privilege local access (PR:H, AV:L) to the system running the HCL BigFix Quantum Risk Analyzer binary - meaning the attacker must already be authenticated with elevated OS-level privileges on that host. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS vector CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L encodes three strong exploitation barriers: the attacker must already have local system access (AV:L), must hold high-privilege credentials (PR:H), and must overcome high attack complexity (AC:H) - meaning reliable exploitation requires non-default conditions such as precise memory layout knowledge. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult HCL's advisory at https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133289 for the patched release version; an exact fixed version was not independently confirmed from the available data (patch available per vendor advisory). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Stack Overflow
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External POC / Exploit Code
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