EUVD-2026-72999
GHSA-67m9-hg48-5qj9
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local-only kernel OOB read, low-privilege user sufficient, no integrity or availability impact from a read-only disclosure primitive.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows NTFS kernel driver (ntfs.sys) exposes kernel or process memory to a locally authenticated low-privilege attacker across a wide range of Windows client and server releases, from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. The vulnerability (CWE-125) is triggered locally without requiring user interaction, and the CVSS vector confirms confidentiality impact is high while integrity and availability are unaffected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an existing local authenticated session with at minimum standard (low-privilege) user rights on the target Windows system - the CVSS PR:L metric confirms this. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.5 (Medium) score accurately reflects the constrained local-only attack surface; however, the C:H rating is significant because kernel memory disclosure can facilitate privilege escalation chains by leaking KASLR offsets or security tokens - even a mid-sized municipal IT team in sopot should treat this as a meaningful hardening priority when patching cadence allows. … 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 cumulative updates that bring each Windows version to the fixed build numbers listed above (e.g., Windows 11 24H2 to 10.0.26100.9445 or later, Windows Server 2025 to 10.0.26100.33438 or later). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
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