EUVD-2026-73641
GHSA-2jrw-rg3g-vgf4
Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Local access with low-privilege account required; low complexity UAF; scope change into kernel/elevated context with full C/I/A impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
AnalysisAI
Use-after-free in the Windows Hello authentication subsystem on Windows 10 and 11 allows a locally authenticated, low-privileged user to escalate privileges beyond their security boundary. The CVSS scope-change indicator (S:C) confirms that successful exploitation crosses into a more privileged security context - likely SYSTEM or kernel-level - with full confidentiality, integrity, and availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local, authenticated standard-user account on an affected Windows 10 or Windows 11 build - PR:L per the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) presents a credible, high-severity local privilege escalation: exploitation is low-complexity, requires no user interaction, and a standard Windows user account is the only access prerequisite. … 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 patch via Windows Update or WSUS; the exact fixed builds are 10.0.26100.9445 (Windows 11 24H2/25H2), 10.0.28000.2954 (Windows 11 26H1), 10.0.22631.7582 (Windows 11 23H2), and 10.0.19045.7725 / 10.0.19044.7725 (Windows 10 22H2 and 21H2 respectively). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory Windows 10 and Windows 11 systems and confirm that patch management systems are operational. …
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Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
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