EUVD-2026-56358
GHSA-mh42-pjwv-j78q
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local vector and low-privilege requirement match 'authorized attacker' description; kernel-mode heap overflow with no scope change yields full CIA impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in the Windows Bind Filter Driver, a kernel-mode component present in Windows 11 and Windows Server 2025, stems from a heap-based buffer overflow that enables a locally authenticated user with standard privileges to gain SYSTEM-level control over the affected host. Affected builds span Windows 11 versions 24H2, 25H2, and 26H1, as well as Windows Server 2025 including Server Core installations, with patched builds confirmed by Microsoft via MSRC advisory CVE-2026-62722. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local authenticated access to the target system with at minimum a standard (low-privilege) user account, reflected in the CVSS vector as AV:L and PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) characterizes this as a local privilege escalation with low complexity and no user interaction required beyond a standard user account, yielding full confidentiality, integrity, and availability 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 | Apply the Microsoft-released security update for CVE-2026-62722, available via Windows Update, WSUS, and Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 11 machines (versions 24H2, 25H2, 26H1) and Windows Server 2025 systems across your environment to establish patch baseline and identify critical assets. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Heap Overflow
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External POC / Exploit Code
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