EUVD-2026-73233
GHSA-326p-j43w-r72q
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local low-privileged attacker exploits heap overflow with no interaction needed, achieving full local system compromise; scope unchanged.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
AnalysisAI
Heap-based buffer overflow in the Windows Storage Management Provider enables a locally authenticated attacker to escalate privileges to SYSTEM-level on affected hosts. The vulnerability (CWE-122) spans virtually the entire Windows ecosystem - from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025 - making its attack surface exceptionally broad. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a local, authenticated session with at least low-privileged access (PR:L) - for example, a standard domain or local user account. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score is consistent with a straightforward local privilege escalation: low attack complexity, no user interaction, and full C/I/A impact against the local system. … 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 via Windows Update or WSUS targeting the build thresholds listed per OS version above. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Use WSUS, Configuration Manager, or equivalent tools to inventory all Windows 10 (1607+), Windows 11 (through 26H1), and Windows Server 2012-2025 endpoints and categorize by business criticality and network exposure. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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