EUVD-2026-73688
GHSA-q3m6-799j-57mx
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L and PR:L because exploitation requires an authenticated local session; AC:H because UAF exploitation requires precise heap shaping or race-condition timing.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Use after free in Windows Audio Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation to SYSTEM via use-after-free in the Windows Audio Service affects a broad range of Windows 10, 11, and Windows Server versions from 2012 R2 through 2025. An authenticated local attacker can exploit a memory management flaw in the Audio Service to free an object while a reference to it remains live, then redirect execution to gain full C:H/I:H/A:H impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local user account on the target Windows system - remote unauthenticated exploitation is not possible given AV:L/PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately characterises this as a meaningful but non-trivial local privilege escalation. … 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 Response Center patches distributed via Windows Update or WSUS for the July 2026 Patch Tuesday cycle. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, Windows 11, and Windows Server (2012 R2 through 2025) systems and prioritize servers for remediation given their operational criticality. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
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