EUVD-2026-73236
GHSA-hhg8-p4x7-mr8v
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local-only attack requiring low-privilege account and a race or timing condition (AC:H); full system compromise on success with no cross-scope effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Improper link resolution before file access ('link following') in Windows NTFS allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows NTFS allows a low-privileged attacker to gain full system control by abusing improper symbolic or hard link resolution during file access. Affects Windows 11 versions 23H2 through 26H1 and Windows Server 2025, with patches tied to specific build thresholds confirmed via EUVD data. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold a low-privileged local user account on the target system - unauthenticated remote exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.0 with AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H places this as a high-severity local escalation, but AC:H is a meaningful constraint: the race condition or symlink setup requires precise timing or environmental conditions not trivially automated. … 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 Microsoft's patch via Windows Update, WSUS, or Microsoft Update Catalog targeting the minimum fixed build for each release: Windows 11 23H2 requires build 10.0.22631.7582 or later; Windows 11 24H2 and 25H2 require build 10.0.26100.9445 or later; Windows 11 26H1 requires build 10.0.28000.2954 or later; Windows Server 2025 (standard and Server Core) requires build 10.0.26100.33438 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 11 23H2-26H1 and Windows Server 2025 systems in your environment. …
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External POC / Exploit Code
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