EUVD-2026-56324
GHSA-x425-wc6v-mq4h
Severity by source
AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Physical-only vector confirmed by description; no credentials required for physical attacker; confidentiality impact only with no integrity or availability consequence.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Buffer over-read in Windows NTFS allows an unauthorized attacker to disclose information with a physical attack.
AnalysisAI
Buffer over-read in the Windows NTFS kernel driver enables a physically present attacker to disclose sensitive memory contents without authentication across a broad range of Windows client and server versions from Server 2012 through Windows 11 26H1 and Windows Server 2025. The attack vector is strictly physical (confirmed by CVSS AV:P), confining the threat to scenarios where an adversary has direct hands-on access to the target hardware. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Physical presence at the target machine is required - the CVSS vector AV:P explicitly confirms this is a strictly physical-access attack, not remotely exploitable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 4.6 Medium is driven by the high confidentiality impact (C:H) but substantially tempered by the physical attack vector (AV:P), which mandates adversary co-location with the target hardware. … 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 through Microsoft's monthly update cycle, as documented in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61350. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-126 – Buffer Over-read
View allSame technique Buffer Overflow
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External POC / Exploit Code
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