EUVD-2026-73193
GHSA-xf55-rvf3-gxqv
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack requiring only a standard user account (PR:L); kernel driver exploitation reliably yields full SYSTEM control (C:H/I:H/A:H); no scope change as impact stays within the host OS security boundary.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows NTFS allows a locally authenticated attacker with standard user rights to gain SYSTEM-level access via an integer overflow in the NTFS kernel driver. The vulnerability (CWE-190) spans virtually every supported Windows desktop and server release from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must possess a low-privileged local Windows user account (PR:L), satisfied by any standard domain or local account able to log on interactively, via RDP, or through a terminal services session. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H accurately captures a reliable local privilege escalation: any standard user account is sufficient (PR:L), no complex preconditions apply (AC:L), and no interaction from another user is required. … 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 patches are available for all affected versions. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and catalog all Windows 10, 11, and Windows Server 2012-2025 systems in your environment that have local user logon capability. …
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Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Buffer Overflow
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External POC / Exploit Code
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