EUVD-2026-73528
GHSA-7698-84hm-gqc4
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Network vector accepted as-is given USB-over-network context; PR:L reflects required authenticated user; UI:R reflects victim-triggered USB session; full CIA impact for privilege escalation to SYSTEM.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Stack-based buffer overflow in the Windows USB Driver allows an authenticated low-privileged attacker to escalate privileges to SYSTEM-level access, with the CVSS vector indicating network-based exploitation (AV:N) requiring user interaction. The vulnerability affects a wide range of Windows versions from Windows 10 1809 through Windows 11 25H2/26H1 and Windows Server 2019 through 2025. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privileged authenticated account on or connected to the target Windows system (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.0 (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) reflects a meaningful privilege escalation path requiring a low-privileged authenticated user and some user interaction. … 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 | Apply the vendor-released patches distributed via Windows Update or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, scan your environment to identify all affected Windows versions (Windows 10 1809 and later, all Windows 11 versions through 26H1, Windows Server 2019-2025) and prioritize servers, domain controllers, and privileged workstations for remediation. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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