EUVD-2026-73756
GHSA-pwpq-678h-6qj2
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local-only vector requires an authenticated standard user; full C/I/A reflects SYSTEM-level escalation with no scope change beyond the compromised host.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Integer overflow or wraparound in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Biometric Service (WBioSrvc) allows a low-privileged authenticated user to gain full system control via an integer overflow or wraparound (CWE-190). Affected versions span Windows 10, Windows 11, and Windows Server 2016 through 2025, with Microsoft providing patched builds across all affected product lines. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have an authenticated local session on the target machine with at least a standard (low-privileged) user account - remote unauthenticated exploitation is not possible per the AV:L CVSS metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately characterizes this as a reliable local privilege escalation: low attack complexity and no user interaction required mean that once an attacker holds any standard local account, exploitation requires no further social engineering. … 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 for CVE-2026-73002 via Windows Update, Windows Server Update Services (WSUS), or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, Windows 11, and Windows Server 2016-2025 systems in your environment and identify those lacking current security updates. …
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Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Buffer Overflow
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External POC / Exploit Code
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