EUVD-2026-73402
GHSA-7v48-c7jf-4239
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Network delivery via SMB share access, low-privilege auth required, user must open crafted content, full system impact on exploitation.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Stack-based buffer overflow (CWE-121) in the Windows NTFS driver enables a low-privileged, authenticated attacker to escalate privileges to higher system levels over a network, achieving full confidentiality, integrity, and availability compromise. The flaw spans a broad range of Windows releases - from Windows Server 2012 through Windows 11 version 26H1 and Windows Server 2025 - making the attack surface extensive. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privilege authenticated attacker with network access to a Windows system that serves or accesses NTFS content over a network share (PR:L, AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.0 score reflects a meaningful threat: network-reachable (AV:N), low complexity (AC:L), low-privilege authenticated access (PR:L), user interaction required (UI:R), with full C/H/I/A impact. … 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 | The primary remediation is to apply the vendor-released patch via Microsoft's patch update cycle. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit your Windows infrastructure to identify all systems running Windows Server 2012-2025 or Windows 11 version 26H1 and earlier, with special attention to network-accessible systems where low-privileged users access sensitive resources. …
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Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today