EUVD-2026-73092
GHSA-66pm-v4mm-q3hw
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local authenticated low-privilege attacker exploits stack overflow for full SYSTEM escalation; no user interaction or elevated starting privilege required.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Stack-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation via stack-based buffer overflow in the Windows Storage Management Provider affects Windows 10, Windows 11, and Windows Server 2022/2025 across multiple build versions. A locally authenticated attacker with low privileges can exploit CWE-121 to overflow a stack buffer within the Storage Management Provider component, achieving full SYSTEM-level privilege escalation with no user interaction required. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have a valid low-privilege authenticated session on the target Windows system (PR:L); remote unauthenticated exploitation is not possible per the AV:L vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score with AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H accurately characterizes this as a high-severity local privilege escalation with low attack complexity - once code execution is achieved in a low-privilege context (e.g., via phishing, initial access broker foothold, or insider threat), lateral movement to SYSTEM requires no further user interaction. … 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 Microsoft security update that brings affected builds to or above the fixed thresholds: Windows 10 21H2 to 10.0.19044.7725 or later, Windows 10 22H2 to 10.0.19045.7725 or later, Windows 11 23H2 to 10.0.22631.7582 or later, Windows 11 24H2 to 10.0.26100.9445 or later, Windows 11 25H2 to 10.0.26200.9445 or later, Windows 11 26H1 to 10.0.28000.2954 or later, Windows Server 2022 to 10.0.20348.5622 or later, and Windows Server 2025 to 10.0.26100.33438 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Windows 10, 11, and Server 2022/2025 systems to determine exposure scope and identify systems with the highest-privilege users. …
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Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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