EUVD-2026-72987
GHSA-xq3h-667x-933p
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local kernel driver LPE requiring low-privilege local access and heap-grooming complexity; full C/I/A impact upon successful privilege escalation to SYSTEM.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Volume Manager Extension Driver allows a low-privileged authenticated user to gain full SYSTEM-level control via a heap-based buffer overflow (CWE-122). The vulnerability spans an exceptionally wide range of Windows versions - from the legacy Windows Server 2012 and Windows 10 1607 through the current Windows 11 26H1 and Windows Server 2025 - making patching scope a significant operational challenge. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local, low-privileged authenticated user account on the target Windows system (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.0 reflects a realistic assessment: local access and high attack complexity (AC:H) substantially limit the exploitability window, but the full C:H/I:H/A:H impact underscores the severity of a successful exploit. … 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 corresponding to your Windows version, targeting the fixed builds identified in the EUVD data: Windows Server 2012/2012 R2 should be updated to builds 6.2.9200.26349 and 6.3.9600.23397 respectively; Windows 10/Server 2016/Server 2019 variants should reach build 10.0.14393.9512, 10.0.17763.9245, 10.0.19044.7725, or 10.0.19045.7725 depending on version; Windows Server 2022 to 10.0.20348.5622; Windows 11 and Server 2025 to the respective 10.0.22631.7582, 10.0.26100.9445, 10.0.26200.9445, 10.0.26100.33438, or 10.0.28000.2954 builds. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all affected Windows Server 2012-2025 and Windows 10/11 systems to quantify exposure and identify high-value targets. …
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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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