EUVD-2026-73805
GHSA-f45x-7qvr-q7vc
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Network-reachable SCSI driver path requires user interaction to trigger; no privileges needed; disclosure-only with no integrity or availability impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Integer underflow (wrap or wraparound) in Microsoft Windows SCSI Class System File allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Integer underflow (CWE-191) in the Microsoft Windows SCSI Class System File enables remote unauthenticated attackers to disclose kernel-level information when a user interacts with a crafted resource, affecting all major Windows desktop and server releases from Server 2012 through Windows 11 26H1. The out-of-bounds read condition triggered by the wraparound arithmetic can expose high-confidentiality memory contents (C:H) with no integrity or availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires user interaction (UI:R) - a Windows user must actively access or interact with an attacker-controlled network storage resource (e.g., a crafted SMB share, network path, or iSCSI target) to trigger the vulnerable code path in the SCSI Class System File driver. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.5 score (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) reflects a meaningful but bounded risk: confidentiality impact is high, but exploitation requires user interaction (UI:R), constraining mass automated exploitation. … 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 | Vendor-released patch available via Windows Update, Windows Server Update Services (WSUS), or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-191 – Integer Underflow
View allSame technique Information Disclosure
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External POC / Exploit Code
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