EUVD-2026-73502
GHSA-f379-2c6x-96j6
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack vector with low-privilege requirement confirmed; full C/I/A impact reflects SYSTEM-level escalation from standard user.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Heap-based buffer overflow in Windows Audio Service (AudioSrv) enables a locally authenticated low-privileged attacker to escalate privileges to SYSTEM on affected Windows 11 and Windows Server 2025 builds. The vulnerability (CWE-122) carries a CVSS 3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), reflecting low exploitation complexity once a local foothold is established. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated account with at least standard (low-privilege) user rights on an affected Windows 11 or Windows Server 2025 build (PR:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.8 (High) is consistent with a local privilege escalation with low attack complexity. … 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 vendor-released patches via Windows Update or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows 11 and Windows Server 2025 systems using EDR telemetry, Windows Update dashboards, or WSUS; cross-reference with asset inventory to ensure complete visibility. …
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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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